Home / 131,789.80-197,646.30-47,540.20

Finding the Fourth Proportional to 131,789.80, 197,646.30 and 47,540.20

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Solution

The fourth proportional to 131,789.80, 197,646.30 and 47,540.20 is: 71,296.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,789.80 : 197,646.30 = 47,540.20 : x
  2. Step 2: Convert to fraction form
    131,789.80/197,646.30 = 47,540.20/x
  3. Step 3: Cross multiply
    131,789.80x = 197,646.30 × 47,540.20
  4. Step 4: Simplify right side
    131,789.80x = 9,396,144,631.26
  5. Step 5: Solve for x
    x = 9,396,144,631.26/131,789.80
  6. Step 6: Final answer
    x = 71,296.45

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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.