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Finding the Fourth Proportional to 123,291.60, 185,010.30 and 89,927.70

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Solution

The fourth proportional to 123,291.60, 185,010.30 and 89,927.70 is: 134,944.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,291.60 : 185,010.30 = 89,927.70 : x
  2. Step 2: Convert to fraction form
    123,291.60/185,010.30 = 89,927.70/x
  3. Step 3: Cross multiply
    123,291.60x = 185,010.30 × 89,927.70
  4. Step 4: Simplify right side
    123,291.60x = 16,637,550,755.31
  5. Step 5: Solve for x
    x = 16,637,550,755.31/123,291.60
  6. Step 6: Final answer
    x = 134,944.72

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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.