Home / 138,475.72-191,121.38-132,165.02

Finding the Fourth Proportional to 138,475.72, 191,121.38 and 132,165.02

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Solution

The fourth proportional to 138,475.72, 191,121.38 and 132,165.02 is: 182,411.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,475.72 : 191,121.38 = 132,165.02 : x
  2. Step 2: Convert to fraction form
    138,475.72/191,121.38 = 132,165.02/x
  3. Step 3: Cross multiply
    138,475.72x = 191,121.38 × 132,165.02
  4. Step 4: Simplify right side
    138,475.72x = 25,259,561,010.13
  5. Step 5: Solve for x
    x = 25,259,561,010.13/138,475.72
  6. Step 6: Final answer
    x = 182,411.48

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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.