Home / 121,432.98-182,039.20-42,504.14

Finding the Fourth Proportional to 121,432.98, 182,039.20 and 42,504.14

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Solution

The fourth proportional to 121,432.98, 182,039.20 and 42,504.14 is: 63,717.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,432.98 : 182,039.20 = 42,504.14 : x
  2. Step 2: Convert to fraction form
    121,432.98/182,039.20 = 42,504.14/x
  3. Step 3: Cross multiply
    121,432.98x = 182,039.20 × 42,504.14
  4. Step 4: Simplify right side
    121,432.98x = 7,737,419,642.29
  5. Step 5: Solve for x
    x = 7,737,419,642.29/121,432.98
  6. Step 6: Final answer
    x = 63,717.61

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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.