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Finding the Fourth Proportional to 159,879.81, 220,635.93 and 88,259.88

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Solution

The fourth proportional to 159,879.81, 220,635.93 and 88,259.88 is: 121,799.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,879.81 : 220,635.93 = 88,259.88 : x
  2. Step 2: Convert to fraction form
    159,879.81/220,635.93 = 88,259.88/x
  3. Step 3: Cross multiply
    159,879.81x = 220,635.93 × 88,259.88
  4. Step 4: Simplify right side
    159,879.81x = 19,473,300,705.49
  5. Step 5: Solve for x
    x = 19,473,300,705.49/159,879.81
  6. Step 6: Final answer
    x = 121,799.62

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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.