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Finding the Fourth Proportional to 160,577.40, 221,610.42 and 88,979.88

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Solution

The fourth proportional to 160,577.40, 221,610.42 and 88,979.88 is: 122,799.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,577.40 : 221,610.42 = 88,979.88 : x
  2. Step 2: Convert to fraction form
    160,577.40/221,610.42 = 88,979.88/x
  3. Step 3: Cross multiply
    160,577.40x = 221,610.42 × 88,979.88
  4. Step 4: Simplify right side
    160,577.40x = 19,718,868,578.35
  5. Step 5: Solve for x
    x = 19,718,868,578.35/160,577.40
  6. Step 6: Final answer
    x = 122,799.77

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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.