Home / 231,052.38-318,840.79-129,057.51

Finding the Fourth Proportional to 231,052.38, 318,840.79 and 129,057.51

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Solution

The fourth proportional to 231,052.38, 318,840.79 and 129,057.51 is: 178,092.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,052.38 : 318,840.79 = 129,057.51 : x
  2. Step 2: Convert to fraction form
    231,052.38/318,840.79 = 129,057.51/x
  3. Step 3: Cross multiply
    231,052.38x = 318,840.79 × 129,057.51
  4. Step 4: Simplify right side
    231,052.38x = 41,148,798,443.83
  5. Step 5: Solve for x
    x = 41,148,798,443.83/231,052.38
  6. Step 6: Final answer
    x = 178,092.94

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1.5x scale

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.