Home / 82,743.60-124,041.06-80,233.86

Finding the Fourth Proportional to 82,743.60, 124,041.06 and 80,233.86

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Solution

The fourth proportional to 82,743.60, 124,041.06 and 80,233.86 is: 120,278.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,743.60 : 124,041.06 = 80,233.86 : x
  2. Step 2: Convert to fraction form
    82,743.60/124,041.06 = 80,233.86/x
  3. Step 3: Cross multiply
    82,743.60x = 124,041.06 × 80,233.86
  4. Step 4: Simplify right side
    82,743.60x = 9,952,293,042.29
  5. Step 5: Solve for x
    x = 9,952,293,042.29/82,743.60
  6. Step 6: Final answer
    x = 120,278.70

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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.