Home / 123,325.16-185,240.24-81,265.56

Finding the Fourth Proportional to 123,325.16, 185,240.24 and 81,265.56

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Solution

The fourth proportional to 123,325.16, 185,240.24 and 81,265.56 is: 122,064.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,325.16 : 185,240.24 = 81,265.56 : x
  2. Step 2: Convert to fraction form
    123,325.16/185,240.24 = 81,265.56/x
  3. Step 3: Cross multiply
    123,325.16x = 185,240.24 × 81,265.56
  4. Step 4: Simplify right side
    123,325.16x = 15,053,651,838.13
  5. Step 5: Solve for x
    x = 15,053,651,838.13/123,325.16
  6. Step 6: Final answer
    x = 122,064.73

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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.