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Finding the Fourth Proportional to 123,393.77, 185,100.27 and 39,158.73

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Solution

The fourth proportional to 123,393.77, 185,100.27 and 39,158.73 is: 58,741.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,393.77 : 185,100.27 = 39,158.73 : x
  2. Step 2: Convert to fraction form
    123,393.77/185,100.27 = 39,158.73/x
  3. Step 3: Cross multiply
    123,393.77x = 185,100.27 × 39,158.73
  4. Step 4: Simplify right side
    123,393.77x = 7,248,291,495.86
  5. Step 5: Solve for x
    x = 7,248,291,495.86/123,393.77
  6. Step 6: Final answer
    x = 58,741.15

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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.