Home / 129,319.11-178,433.62-75,593.74

Finding the Fourth Proportional to 129,319.11, 178,433.62 and 75,593.74

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Solution

The fourth proportional to 129,319.11, 178,433.62 and 75,593.74 is: 104,303.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,319.11 : 178,433.62 = 75,593.74 : x
  2. Step 2: Convert to fraction form
    129,319.11/178,433.62 = 75,593.74/x
  3. Step 3: Cross multiply
    129,319.11x = 178,433.62 × 75,593.74
  4. Step 4: Simplify right side
    129,319.11x = 13,488,464,677.54
  5. Step 5: Solve for x
    x = 13,488,464,677.54/129,319.11
  6. Step 6: Final answer
    x = 104,303.72

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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.