Home / 117,234.98-161,773.35-66,251.61

Finding the Fourth Proportional to 117,234.98, 161,773.35 and 66,251.61

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Solution

The fourth proportional to 117,234.98, 161,773.35 and 66,251.61 is: 91,421.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,234.98 : 161,773.35 = 66,251.61 : x
  2. Step 2: Convert to fraction form
    117,234.98/161,773.35 = 66,251.61/x
  3. Step 3: Cross multiply
    117,234.98x = 161,773.35 × 66,251.61
  4. Step 4: Simplify right side
    117,234.98x = 10,717,744,892.59
  5. Step 5: Solve for x
    x = 10,717,744,892.59/117,234.98
  6. Step 6: Final answer
    x = 91,421.05

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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.