Home / 159,867.38-220,701.58-103,311.02

Finding the Fourth Proportional to 159,867.38, 220,701.58 and 103,311.02

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Solution

The fourth proportional to 159,867.38, 220,701.58 and 103,311.02 is: 142,623.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,867.38 : 220,701.58 = 103,311.02 : x
  2. Step 2: Convert to fraction form
    159,867.38/220,701.58 = 103,311.02/x
  3. Step 3: Cross multiply
    159,867.38x = 220,701.58 × 103,311.02
  4. Step 4: Simplify right side
    159,867.38x = 22,800,905,345.41
  5. Step 5: Solve for x
    x = 22,800,905,345.41/159,867.38
  6. Step 6: Final answer
    x = 142,623.88

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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.