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Finding the Fourth Proportional to 160,862.78, 222,017.22 and 89,265.87

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Solution

The fourth proportional to 160,862.78, 222,017.22 and 89,265.87 is: 123,201.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,862.78 : 222,017.22 = 89,265.87 : x
  2. Step 2: Convert to fraction form
    160,862.78/222,017.22 = 89,265.87/x
  3. Step 3: Cross multiply
    160,862.78x = 222,017.22 × 89,265.87
  4. Step 4: Simplify right side
    160,862.78x = 19,818,560,298.28
  5. Step 5: Solve for x
    x = 19,818,560,298.28/160,862.78
  6. Step 6: Final answer
    x = 123,201.66

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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.