Home / 121,851.28-182,791.50-42,949.18

Finding the Fourth Proportional to 121,851.28, 182,791.50 and 42,949.18

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Solution

The fourth proportional to 121,851.28, 182,791.50 and 42,949.18 is: 64,428.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,851.28 : 182,791.50 = 42,949.18 : x
  2. Step 2: Convert to fraction form
    121,851.28/182,791.50 = 42,949.18/x
  3. Step 3: Cross multiply
    121,851.28x = 182,791.50 × 42,949.18
  4. Step 4: Simplify right side
    121,851.28x = 7,850,745,035.97
  5. Step 5: Solve for x
    x = 7,850,745,035.97/121,851.28
  6. Step 6: Final answer
    x = 64,428.91

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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.