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Finding the Fourth Proportional to 159,937.30, 220,716.90 and 88,321.84

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Solution

The fourth proportional to 159,937.30, 220,716.90 and 88,321.84 is: 121,886.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,937.30 : 220,716.90 = 88,321.84 : x
  2. Step 2: Convert to fraction form
    159,937.30/220,716.90 = 88,321.84/x
  3. Step 3: Cross multiply
    159,937.30x = 220,716.90 × 88,321.84
  4. Step 4: Simplify right side
    159,937.30x = 19,494,122,727.10
  5. Step 5: Solve for x
    x = 19,494,122,727.10/159,937.30
  6. Step 6: Final answer
    x = 121,886.03

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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.