Home / 129,318.61-178,432.93-75,593.24

Finding the Fourth Proportional to 129,318.61, 178,432.93 and 75,593.24

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Solution

The fourth proportional to 129,318.61, 178,432.93 and 75,593.24 is: 104,303.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,318.61 : 178,432.93 = 75,593.24 : x
  2. Step 2: Convert to fraction form
    129,318.61/178,432.93 = 75,593.24/x
  3. Step 3: Cross multiply
    129,318.61x = 178,432.93 × 75,593.24
  4. Step 4: Simplify right side
    129,318.61x = 13,488,323,301.39
  5. Step 5: Solve for x
    x = 13,488,323,301.39/129,318.61
  6. Step 6: Final answer
    x = 104,303.03

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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.