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Finding the Fourth Proportional to 159,505.48, 220,116.48 and 87,883.84

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Solution

The fourth proportional to 159,505.48, 220,116.48 and 87,883.84 is: 121,279.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,505.48 : 220,116.48 = 87,883.84 : x
  2. Step 2: Convert to fraction form
    159,505.48/220,116.48 = 87,883.84/x
  3. Step 3: Cross multiply
    159,505.48x = 220,116.48 × 87,883.84
  4. Step 4: Simplify right side
    159,505.48x = 19,344,681,509.68
  5. Step 5: Solve for x
    x = 19,344,681,509.68/159,505.48
  6. Step 6: Final answer
    x = 121,279.10

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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.