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Finding the Fourth Proportional to 159,049.54, 219,489.92 and 86,452.75

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Solution

The fourth proportional to 159,049.54, 219,489.92 and 86,452.75 is: 119,305.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,049.54 : 219,489.92 = 86,452.75 : x
  2. Step 2: Convert to fraction form
    159,049.54/219,489.92 = 86,452.75/x
  3. Step 3: Cross multiply
    159,049.54x = 219,489.92 × 86,452.75
  4. Step 4: Simplify right side
    159,049.54x = 18,975,507,347.58
  5. Step 5: Solve for x
    x = 18,975,507,347.58/159,049.54
  6. Step 6: Final answer
    x = 119,305.64

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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.