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Finding the Fourth Proportional to 159,614.58, 220,269.82 and 87,997.17

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Solution

The fourth proportional to 159,614.58, 220,269.82 and 87,997.17 is: 121,437.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,614.58 : 220,269.82 = 87,997.17 : x
  2. Step 2: Convert to fraction form
    159,614.58/220,269.82 = 87,997.17/x
  3. Step 3: Cross multiply
    159,614.58x = 220,269.82 × 87,997.17
  4. Step 4: Simplify right side
    159,614.58x = 19,383,120,796.41
  5. Step 5: Solve for x
    x = 19,383,120,796.41/159,614.58
  6. Step 6: Final answer
    x = 121,437.03

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1.5x scale

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.