Home / 231,148.49-318,983.96-129,173.91

Finding the Fourth Proportional to 231,148.49, 318,983.96 and 129,173.91

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Solution

The fourth proportional to 231,148.49, 318,983.96 and 129,173.91 is: 178,259.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,148.49 : 318,983.96 = 129,173.91 : x
  2. Step 2: Convert to fraction form
    231,148.49/318,983.96 = 129,173.91/x
  3. Step 3: Cross multiply
    231,148.49x = 318,983.96 × 129,173.91
  4. Step 4: Simplify right side
    231,148.49x = 41,204,404,694.61
  5. Step 5: Solve for x
    x = 41,204,404,694.61/231,148.49
  6. Step 6: Final answer
    x = 178,259.46

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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.