Home / 130,049.68-179,466.40-72,690.36

Finding the Fourth Proportional to 130,049.68, 179,466.40 and 72,690.36

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Solution

The fourth proportional to 130,049.68, 179,466.40 and 72,690.36 is: 100,311.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,049.68 : 179,466.40 = 72,690.36 : x
  2. Step 2: Convert to fraction form
    130,049.68/179,466.40 = 72,690.36/x
  3. Step 3: Cross multiply
    130,049.68x = 179,466.40 × 72,690.36
  4. Step 4: Simplify right side
    130,049.68x = 13,045,477,223.90
  5. Step 5: Solve for x
    x = 13,045,477,223.90/130,049.68
  6. Step 6: Final answer
    x = 100,311.49

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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.