Home / 129,449.92-194,174.68-40,711.16

Finding the Fourth Proportional to 129,449.92, 194,174.68 and 40,711.16

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Solution

The fourth proportional to 129,449.92, 194,174.68 and 40,711.16 is: 61,066.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,449.92 : 194,174.68 = 40,711.16 : x
  2. Step 2: Convert to fraction form
    129,449.92/194,174.68 = 40,711.16/x
  3. Step 3: Cross multiply
    129,449.92x = 194,174.68 × 40,711.16
  4. Step 4: Simplify right side
    129,449.92x = 7,905,076,465.43
  5. Step 5: Solve for x
    x = 7,905,076,465.43/129,449.92
  6. Step 6: Final answer
    x = 61,066.68

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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.