Home / 129,317.61-178,431.55-75,592.24

Finding the Fourth Proportional to 129,317.61, 178,431.55 and 75,592.24

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Solution

The fourth proportional to 129,317.61, 178,431.55 and 75,592.24 is: 104,301.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,317.61 : 178,431.55 = 75,592.24 : x
  2. Step 2: Convert to fraction form
    129,317.61/178,431.55 = 75,592.24/x
  3. Step 3: Cross multiply
    129,317.61x = 178,431.55 × 75,592.24
  4. Step 4: Simplify right side
    129,317.61x = 13,488,040,551.17
  5. Step 5: Solve for x
    x = 13,488,040,551.17/129,317.61
  6. Step 6: Final answer
    x = 104,301.65

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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.