Home / 143,844.30-215,766.45-131,402.70

Finding the Fourth Proportional to 143,844.30, 215,766.45 and 131,402.70

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Solution

The fourth proportional to 143,844.30, 215,766.45 and 131,402.70 is: 197,104.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,844.30 : 215,766.45 = 131,402.70 : x
  2. Step 2: Convert to fraction form
    143,844.30/215,766.45 = 131,402.70/x
  3. Step 3: Cross multiply
    143,844.30x = 215,766.45 × 131,402.70
  4. Step 4: Simplify right side
    143,844.30x = 28,352,294,099.42
  5. Step 5: Solve for x
    x = 28,352,294,099.42/143,844.30
  6. Step 6: Final answer
    x = 197,104.05

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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.