Home / 127,789.26-191,712.08-39,049.68

Finding the Fourth Proportional to 127,789.26, 191,712.08 and 39,049.68

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Solution

The fourth proportional to 127,789.26, 191,712.08 and 39,049.68 is: 58,583.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,789.26 : 191,712.08 = 39,049.68 : x
  2. Step 2: Convert to fraction form
    127,789.26/191,712.08 = 39,049.68/x
  3. Step 3: Cross multiply
    127,789.26x = 191,712.08 × 39,049.68
  4. Step 4: Simplify right side
    127,789.26x = 7,486,295,758.34
  5. Step 5: Solve for x
    x = 7,486,295,758.34/127,789.26
  6. Step 6: Final answer
    x = 58,583.14

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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.