Home / 123,983.60-185,975.40-74,217.20

Finding the Fourth Proportional to 123,983.60, 185,975.40 and 74,217.20

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Solution

The fourth proportional to 123,983.60, 185,975.40 and 74,217.20 is: 111,325.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,983.60 : 185,975.40 = 74,217.20 : x
  2. Step 2: Convert to fraction form
    123,983.60/185,975.40 = 74,217.20/x
  3. Step 3: Cross multiply
    123,983.60x = 185,975.40 × 74,217.20
  4. Step 4: Simplify right side
    123,983.60x = 13,802,573,456.88
  5. Step 5: Solve for x
    x = 13,802,573,456.88/123,983.60
  6. Step 6: Final answer
    x = 111,325.80

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Similar ratio
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1.5x scale

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.