Home / 121,340.47-182,092.76-42,455.38

Finding the Fourth Proportional to 121,340.47, 182,092.76 and 42,455.38

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Solution

The fourth proportional to 121,340.47, 182,092.76 and 42,455.38 is: 63,711.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,340.47 : 182,092.76 = 42,455.38 : x
  2. Step 2: Convert to fraction form
    121,340.47/182,092.76 = 42,455.38/x
  3. Step 3: Cross multiply
    121,340.47x = 182,092.76 × 42,455.38
  4. Step 4: Simplify right side
    121,340.47x = 7,730,817,321.05
  5. Step 5: Solve for x
    x = 7,730,817,321.05/121,340.47
  6. Step 6: Final answer
    x = 63,711.78

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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.