Home / 121,830.66-182,557.17-84,463.38

Finding the Fourth Proportional to 121,830.66, 182,557.17 and 84,463.38

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Solution

The fourth proportional to 121,830.66, 182,557.17 and 84,463.38 is: 126,564.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,830.66 : 182,557.17 = 84,463.38 : x
  2. Step 2: Convert to fraction form
    121,830.66/182,557.17 = 84,463.38/x
  3. Step 3: Cross multiply
    121,830.66x = 182,557.17 × 84,463.38
  4. Step 4: Simplify right side
    121,830.66x = 15,419,395,621.43
  5. Step 5: Solve for x
    x = 15,419,395,621.43/121,830.66
  6. Step 6: Final answer
    x = 126,564.16

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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.