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Finding the Fourth Proportional to 123,879.52, 185,818.32 and 40,773.28

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Solution

The fourth proportional to 123,879.52, 185,818.32 and 40,773.28 is: 61,159.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,879.52 : 185,818.32 = 40,773.28 : x
  2. Step 2: Convert to fraction form
    123,879.52/185,818.32 = 40,773.28/x
  3. Step 3: Cross multiply
    123,879.52x = 185,818.32 × 40,773.28
  4. Step 4: Simplify right side
    123,879.52x = 7,576,422,390.49
  5. Step 5: Solve for x
    x = 7,576,422,390.49/123,879.52
  6. Step 6: Final answer
    x = 61,159.60

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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.