Home / 159,938.28-240,052.56-85,121.44

Finding the Fourth Proportional to 159,938.28, 240,052.56 and 85,121.44

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Solution

The fourth proportional to 159,938.28, 240,052.56 and 85,121.44 is: 127,759.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,938.28 : 240,052.56 = 85,121.44 : x
  2. Step 2: Convert to fraction form
    159,938.28/240,052.56 = 85,121.44/x
  3. Step 3: Cross multiply
    159,938.28x = 240,052.56 × 85,121.44
  4. Step 4: Simplify right side
    159,938.28x = 20,433,619,582.89
  5. Step 5: Solve for x
    x = 20,433,619,582.89/159,938.28
  6. Step 6: Final answer
    x = 127,759.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.