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Finding the Fourth Proportional to 159,859.30, 220,605.87 and 88,239.36

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Solution

The fourth proportional to 159,859.30, 220,605.87 and 88,239.36 is: 121,770.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,859.30 : 220,605.87 = 88,239.36 : x
  2. Step 2: Convert to fraction form
    159,859.30/220,605.87 = 88,239.36/x
  3. Step 3: Cross multiply
    159,859.30x = 220,605.87 × 88,239.36
  4. Step 4: Simplify right side
    159,859.30x = 19,466,120,781.04
  5. Step 5: Solve for x
    x = 19,466,120,781.04/159,859.30
  6. Step 6: Final answer
    x = 121,770.34

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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.