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Finding the Fourth Proportional to 123,455.64, 185,250.87 and 52,367.28

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Solution

The fourth proportional to 123,455.64, 185,250.87 and 52,367.28 is: 78,579.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,455.64 : 185,250.87 = 52,367.28 : x
  2. Step 2: Convert to fraction form
    123,455.64/185,250.87 = 52,367.28/x
  3. Step 3: Cross multiply
    123,455.64x = 185,250.87 × 52,367.28
  4. Step 4: Simplify right side
    123,455.64x = 9,701,084,179.53
  5. Step 5: Solve for x
    x = 9,701,084,179.53/123,455.64
  6. Step 6: Final answer
    x = 78,579.51

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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.