Home / 129,362.27-178,454.61-75,612.17

Finding the Fourth Proportional to 129,362.27, 178,454.61 and 75,612.17

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Solution

The fourth proportional to 129,362.27, 178,454.61 and 75,612.17 is: 104,306.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,362.27 : 178,454.61 = 75,612.17 : x
  2. Step 2: Convert to fraction form
    129,362.27/178,454.61 = 75,612.17/x
  3. Step 3: Cross multiply
    129,362.27x = 178,454.61 × 75,612.17
  4. Step 4: Simplify right side
    129,362.27x = 13,493,340,308.60
  5. Step 5: Solve for x
    x = 13,493,340,308.60/129,362.27
  6. Step 6: Final answer
    x = 104,306.61

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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.