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Finding the Fourth Proportional to 159,955.70, 220,738.12 and 88,335.41

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Solution

The fourth proportional to 159,955.70, 220,738.12 and 88,335.41 is: 121,902.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,955.70 : 220,738.12 = 88,335.41 : x
  2. Step 2: Convert to fraction form
    159,955.70/220,738.12 = 88,335.41/x
  3. Step 3: Cross multiply
    159,955.70x = 220,738.12 × 88,335.41
  4. Step 4: Simplify right side
    159,955.70x = 19,498,991,008.30
  5. Step 5: Solve for x
    x = 19,498,991,008.30/159,955.70
  6. Step 6: Final answer
    x = 121,902.45

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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.