Home / 159,964.12-220,793.25-91,988.56

Finding the Fourth Proportional to 159,964.12, 220,793.25 and 91,988.56

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Solution

The fourth proportional to 159,964.12, 220,793.25 and 91,988.56 is: 126,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,964.12 : 220,793.25 = 91,988.56 : x
  2. Step 2: Convert to fraction form
    159,964.12/220,793.25 = 91,988.56/x
  3. Step 3: Cross multiply
    159,964.12x = 220,793.25 × 91,988.56
  4. Step 4: Simplify right side
    159,964.12x = 20,310,453,125.22
  5. Step 5: Solve for x
    x = 20,310,453,125.22/159,964.12
  6. Step 6: Final answer
    x = 126,968.80

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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.