Home / 139,982.29-193,177.65-76,321.15

Finding the Fourth Proportional to 139,982.29, 193,177.65 and 76,321.15

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Solution

The fourth proportional to 139,982.29, 193,177.65 and 76,321.15 is: 105,324.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,982.29 : 193,177.65 = 76,321.15 : x
  2. Step 2: Convert to fraction form
    139,982.29/193,177.65 = 76,321.15/x
  3. Step 3: Cross multiply
    139,982.29x = 193,177.65 × 76,321.15
  4. Step 4: Simplify right side
    139,982.29x = 14,743,540,402.30
  5. Step 5: Solve for x
    x = 14,743,540,402.30/139,982.29
  6. Step 6: Final answer
    x = 105,324.33

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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.