Home / 129,988.71-195,012.24-41,245.11

Finding the Fourth Proportional to 129,988.71, 195,012.24 and 41,245.11

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Solution

The fourth proportional to 129,988.71, 195,012.24 and 41,245.11 is: 61,876.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,988.71 : 195,012.24 = 41,245.11 : x
  2. Step 2: Convert to fraction form
    129,988.71/195,012.24 = 41,245.11/x
  3. Step 3: Cross multiply
    129,988.71x = 195,012.24 × 41,245.11
  4. Step 4: Simplify right side
    129,988.71x = 8,043,301,290.15
  5. Step 5: Solve for x
    x = 8,043,301,290.15/129,988.71
  6. Step 6: Final answer
    x = 61,876.92

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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.