Home / 126,805.40-190,073.22-47,886.04

Finding the Fourth Proportional to 126,805.40, 190,073.22 and 47,886.04

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Solution

The fourth proportional to 126,805.40, 190,073.22 and 47,886.04 is: 71,778.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,805.40 : 190,073.22 = 47,886.04 : x
  2. Step 2: Convert to fraction form
    126,805.40/190,073.22 = 47,886.04/x
  3. Step 3: Cross multiply
    126,805.40x = 190,073.22 × 47,886.04
  4. Step 4: Simplify right side
    126,805.40x = 9,101,853,815.85
  5. Step 5: Solve for x
    x = 9,101,853,815.85/126,805.40
  6. Step 6: Final answer
    x = 71,778.12

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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.