Home / 159,549.78-220,189.08-91,588.75

Finding the Fourth Proportional to 159,549.78, 220,189.08 and 91,588.75

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Solution

The fourth proportional to 159,549.78, 220,189.08 and 91,588.75 is: 126,398.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,549.78 : 220,189.08 = 91,588.75 : x
  2. Step 2: Convert to fraction form
    159,549.78/220,189.08 = 91,588.75/x
  3. Step 3: Cross multiply
    159,549.78x = 220,189.08 × 91,588.75
  4. Step 4: Simplify right side
    159,549.78x = 20,166,842,600.85
  5. Step 5: Solve for x
    x = 20,166,842,600.85/159,549.78
  6. Step 6: Final answer
    x = 126,398.44

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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.