Home / 143,060.40-214,704-75,640.32

Finding the Fourth Proportional to 143,060.40, 214,704 and 75,640.32

Calculator

Solution

The fourth proportional to 143,060.40, 214,704 and 75,640.32 is: 113,520.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,060.40 : 214,704 = 75,640.32 : x
  2. Step 2: Convert to fraction form
    143,060.40/214,704 = 75,640.32/x
  3. Step 3: Cross multiply
    143,060.40x = 214,704 × 75,640.32
  4. Step 4: Simplify right side
    143,060.40x = 16,240,279,265.28
  5. Step 5: Solve for x
    x = 16,240,279,265.28/143,060.40
  6. Step 6: Final answer
    x = 113,520.44

Related Problems

Find fourth proportional to 71,530.20, 107,352 and 37,820.16
Half scale
Find fourth proportional to 286,120.80, 429,408 and 151,280.64
Double scale
Find fourth proportional to 143,061.40, 214,705.50 and 75,641.32
Similar ratio
Find fourth proportional to 214,590.60, 322,056 and 113,460.48
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.