Home / 123,728.43-185,603.06-39,500.61

Finding the Fourth Proportional to 123,728.43, 185,603.06 and 39,500.61

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Solution

The fourth proportional to 123,728.43, 185,603.06 and 39,500.61 is: 59,254.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,728.43 : 185,603.06 = 39,500.61 : x
  2. Step 2: Convert to fraction form
    123,728.43/185,603.06 = 39,500.61/x
  3. Step 3: Cross multiply
    123,728.43x = 185,603.06 × 39,500.61
  4. Step 4: Simplify right side
    123,728.43x = 7,331,433,890.36
  5. Step 5: Solve for x
    x = 7,331,433,890.36/123,728.43
  6. Step 6: Final answer
    x = 59,254.24

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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.