Home / 156,877.70-235,446.15-72,767.30

Finding the Fourth Proportional to 156,877.70, 235,446.15 and 72,767.30

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Solution

The fourth proportional to 156,877.70, 235,446.15 and 72,767.30 is: 109,211.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,877.70 : 235,446.15 = 72,767.30 : x
  2. Step 2: Convert to fraction form
    156,877.70/235,446.15 = 72,767.30/x
  3. Step 3: Cross multiply
    156,877.70x = 235,446.15 × 72,767.30
  4. Step 4: Simplify right side
    156,877.70x = 17,132,780,630.90
  5. Step 5: Solve for x
    x = 17,132,780,630.90/156,877.70
  6. Step 6: Final answer
    x = 109,211.06

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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.