Home / 129,291.30-193,812.24-66,141.17

Finding the Fourth Proportional to 129,291.30, 193,812.24 and 66,141.17

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Solution

The fourth proportional to 129,291.30, 193,812.24 and 66,141.17 is: 99,147.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,291.30 : 193,812.24 = 66,141.17 : x
  2. Step 2: Convert to fraction form
    129,291.30/193,812.24 = 66,141.17/x
  3. Step 3: Cross multiply
    129,291.30x = 193,812.24 × 66,141.17
  4. Step 4: Simplify right side
    129,291.30x = 12,818,967,344.86
  5. Step 5: Solve for x
    x = 12,818,967,344.86/129,291.30
  6. Step 6: Final answer
    x = 99,147.95

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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.