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Finding the Fourth Proportional to 131,560.44, 181,550.70 and 71,944.44

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Solution

The fourth proportional to 131,560.44, 181,550.70 and 71,944.44 is: 99,281.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,560.44 : 181,550.70 = 71,944.44 : x
  2. Step 2: Convert to fraction form
    131,560.44/181,550.70 = 71,944.44/x
  3. Step 3: Cross multiply
    131,560.44x = 181,550.70 × 71,944.44
  4. Step 4: Simplify right side
    131,560.44x = 13,061,563,443.11
  5. Step 5: Solve for x
    x = 13,061,563,443.11/131,560.44
  6. Step 6: Final answer
    x = 99,281.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.