Home / 109,449.76-164,517.12-72,248.96

Finding the Fourth Proportional to 109,449.76, 164,517.12 and 72,248.96

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Solution

The fourth proportional to 109,449.76, 164,517.12 and 72,248.96 is: 108,599.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,449.76 : 164,517.12 = 72,248.96 : x
  2. Step 2: Convert to fraction form
    109,449.76/164,517.12 = 72,248.96/x
  3. Step 3: Cross multiply
    109,449.76x = 164,517.12 × 72,248.96
  4. Step 4: Simplify right side
    109,449.76x = 11,886,190,822.20
  5. Step 5: Solve for x
    x = 11,886,190,822.20/109,449.76
  6. Step 6: Final answer
    x = 108,599.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.