Home / 121,375.09-182,062.63-42,470.86

Finding the Fourth Proportional to 121,375.09, 182,062.63 and 42,470.86

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Solution

The fourth proportional to 121,375.09, 182,062.63 and 42,470.86 is: 63,706.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,375.09 : 182,062.63 = 42,470.86 : x
  2. Step 2: Convert to fraction form
    121,375.09/182,062.63 = 42,470.86/x
  3. Step 3: Cross multiply
    121,375.09x = 182,062.63 × 42,470.86
  4. Step 4: Simplify right side
    121,375.09x = 7,732,356,469.96
  5. Step 5: Solve for x
    x = 7,732,356,469.96/121,375.09
  6. Step 6: Final answer
    x = 63,706.29

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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.