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Finding the Fourth Proportional to 159,812.91, 220,539.87 and 88,191.36

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Solution

The fourth proportional to 159,812.91, 220,539.87 and 88,191.36 is: 121,703.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,812.91 : 220,539.87 = 88,191.36 : x
  2. Step 2: Convert to fraction form
    159,812.91/220,539.87 = 88,191.36/x
  3. Step 3: Cross multiply
    159,812.91x = 220,539.87 × 88,191.36
  4. Step 4: Simplify right side
    159,812.91x = 19,449,711,069.52
  5. Step 5: Solve for x
    x = 19,449,711,069.52/159,812.91
  6. Step 6: Final answer
    x = 121,703.00

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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.