Home / 121,902.47-182,787.96-55,306.26

Finding the Fourth Proportional to 121,902.47, 182,787.96 and 55,306.26

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Solution

The fourth proportional to 121,902.47, 182,787.96 and 55,306.26 is: 82,929.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,902.47 : 182,787.96 = 55,306.26 : x
  2. Step 2: Convert to fraction form
    121,902.47/182,787.96 = 55,306.26/x
  3. Step 3: Cross multiply
    121,902.47x = 182,787.96 × 55,306.26
  4. Step 4: Simplify right side
    121,902.47x = 10,109,318,164.10
  5. Step 5: Solve for x
    x = 10,109,318,164.10/121,902.47
  6. Step 6: Final answer
    x = 82,929.56

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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.