Home / 159,320.32-219,862-87,700

Finding the Fourth Proportional to 159,320.32, 219,862 and 87,700

Calculator

Solution

The fourth proportional to 159,320.32, 219,862 and 87,700 is: 121,025.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,320.32 : 219,862 = 87,700 : x
  2. Step 2: Convert to fraction form
    159,320.32/219,862 = 87,700/x
  3. Step 3: Cross multiply
    159,320.32x = 219,862 × 87,700
  4. Step 4: Simplify right side
    159,320.32x = 19,281,897,400
  5. Step 5: Solve for x
    x = 19,281,897,400/159,320.32
  6. Step 6: Final answer
    x = 121,025.98

Related Problems

Find fourth proportional to 79,660.16, 109,931 and 43,850
Half scale
Find fourth proportional to 318,640.64, 439,724 and 175,400
Double scale
Find fourth proportional to 159,321.32, 219,863.38 and 87,701
Similar ratio
Find fourth proportional to 238,980.48, 329,793 and 131,550
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.