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Finding the Fourth Proportional to 159,791.03, 220,511.39 and 88,171.03

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Solution

The fourth proportional to 159,791.03, 220,511.39 and 88,171.03 is: 121,675.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,791.03 : 220,511.39 = 88,171.03 : x
  2. Step 2: Convert to fraction form
    159,791.03/220,511.39 = 88,171.03/x
  3. Step 3: Cross multiply
    159,791.03x = 220,511.39 × 88,171.03
  4. Step 4: Simplify right side
    159,791.03x = 19,442,715,390.90
  5. Step 5: Solve for x
    x = 19,442,715,390.90/159,791.03
  6. Step 6: Final answer
    x = 121,675.89

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1.5x scale

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.