Home / 83,120.10-124,680.15-73,934.70

Finding the Fourth Proportional to 83,120.10, 124,680.15 and 73,934.70

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Solution

The fourth proportional to 83,120.10, 124,680.15 and 73,934.70 is: 110,902.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,120.10 : 124,680.15 = 73,934.70 : x
  2. Step 2: Convert to fraction form
    83,120.10/124,680.15 = 73,934.70/x
  3. Step 3: Cross multiply
    83,120.10x = 124,680.15 × 73,934.70
  4. Step 4: Simplify right side
    83,120.10x = 9,218,189,486.21
  5. Step 5: Solve for x
    x = 9,218,189,486.21/83,120.10
  6. Step 6: Final answer
    x = 110,902.05

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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.