Home / 115,732.20-159,622.13-99,625.97

Finding the Fourth Proportional to 115,732.20, 159,622.13 and 99,625.97

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Solution

The fourth proportional to 115,732.20, 159,622.13 and 99,625.97 is: 137,407.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,732.20 : 159,622.13 = 99,625.97 : x
  2. Step 2: Convert to fraction form
    115,732.20/159,622.13 = 99,625.97/x
  3. Step 3: Cross multiply
    115,732.20x = 159,622.13 × 99,625.97
  4. Step 4: Simplify right side
    115,732.20x = 15,902,508,238.48
  5. Step 5: Solve for x
    x = 15,902,508,238.48/115,732.20
  6. Step 6: Final answer
    x = 137,407.81

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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.