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Finding the Fourth Proportional to 153,939.60, 230,520.60 and 101,062.80

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Solution

The fourth proportional to 153,939.60, 230,520.60 and 101,062.80 is: 151,338.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,939.60 : 230,520.60 = 101,062.80 : x
  2. Step 2: Convert to fraction form
    153,939.60/230,520.60 = 101,062.80/x
  3. Step 3: Cross multiply
    153,939.60x = 230,520.60 × 101,062.80
  4. Step 4: Simplify right side
    153,939.60x = 23,297,057,293.68
  5. Step 5: Solve for x
    x = 23,297,057,293.68/153,939.60
  6. Step 6: Final answer
    x = 151,338.95

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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.