Home / 129,460.49-178,349.17-123,481.47

Finding the Fourth Proportional to 129,460.49, 178,349.17 and 123,481.47

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Solution

The fourth proportional to 129,460.49, 178,349.17 and 123,481.47 is: 170,112.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,460.49 : 178,349.17 = 123,481.47 : x
  2. Step 2: Convert to fraction form
    129,460.49/178,349.17 = 123,481.47/x
  3. Step 3: Cross multiply
    129,460.49x = 178,349.17 × 123,481.47
  4. Step 4: Simplify right side
    129,460.49x = 22,022,817,684.88
  5. Step 5: Solve for x
    x = 22,022,817,684.88/129,460.49
  6. Step 6: Final answer
    x = 170,112.27

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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.