Home / 129,337.38-178,450.62-75,635.58

Finding the Fourth Proportional to 129,337.38, 178,450.62 and 75,635.58

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Solution

The fourth proportional to 129,337.38, 178,450.62 and 75,635.58 is: 104,356.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,337.38 : 178,450.62 = 75,635.58 : x
  2. Step 2: Convert to fraction form
    129,337.38/178,450.62 = 75,635.58/x
  3. Step 3: Cross multiply
    129,337.38x = 178,450.62 × 75,635.58
  4. Step 4: Simplify right side
    129,337.38x = 13,497,216,145.06
  5. Step 5: Solve for x
    x = 13,497,216,145.06/129,337.38
  6. Step 6: Final answer
    x = 104,356.65

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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.