Home / 120,713.17-181,073.56-57,540.16

Finding the Fourth Proportional to 120,713.17, 181,073.56 and 57,540.16

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Solution

The fourth proportional to 120,713.17, 181,073.56 and 57,540.16 is: 86,312.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,713.17 : 181,073.56 = 57,540.16 : x
  2. Step 2: Convert to fraction form
    120,713.17/181,073.56 = 57,540.16/x
  3. Step 3: Cross multiply
    120,713.17x = 181,073.56 × 57,540.16
  4. Step 4: Simplify right side
    120,713.17x = 10,419,000,786.01
  5. Step 5: Solve for x
    x = 10,419,000,786.01/120,713.17
  6. Step 6: Final answer
    x = 86,312.05

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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.