Home / 138,342.20-207,513.30-132,510.20

Finding the Fourth Proportional to 138,342.20, 207,513.30 and 132,510.20

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Solution

The fourth proportional to 138,342.20, 207,513.30 and 132,510.20 is: 198,765.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,342.20 : 207,513.30 = 132,510.20 : x
  2. Step 2: Convert to fraction form
    138,342.20/207,513.30 = 132,510.20/x
  3. Step 3: Cross multiply
    138,342.20x = 207,513.30 × 132,510.20
  4. Step 4: Simplify right side
    138,342.20x = 27,497,628,885.66
  5. Step 5: Solve for x
    x = 27,497,628,885.66/138,342.20
  6. Step 6: Final answer
    x = 198,765.30

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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.