Home / 123,030.60-169,690.55-109,249.61

Finding the Fourth Proportional to 123,030.60, 169,690.55 and 109,249.61

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Solution

The fourth proportional to 123,030.60, 169,690.55 and 109,249.61 is: 150,683.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,030.60 : 169,690.55 = 109,249.61 : x
  2. Step 2: Convert to fraction form
    123,030.60/169,690.55 = 109,249.61/x
  3. Step 3: Cross multiply
    123,030.60x = 169,690.55 × 109,249.61
  4. Step 4: Simplify right side
    123,030.60x = 18,538,625,013.48
  5. Step 5: Solve for x
    x = 18,538,625,013.48/123,030.60
  6. Step 6: Final answer
    x = 150,683.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.