Home / 98,744.22-148,138.25-38,778.48

Finding the Fourth Proportional to 98,744.22, 148,138.25 and 38,778.48

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Solution

The fourth proportional to 98,744.22, 148,138.25 and 38,778.48 is: 58,176.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,744.22 : 148,138.25 = 38,778.48 : x
  2. Step 2: Convert to fraction form
    98,744.22/148,138.25 = 38,778.48/x
  3. Step 3: Cross multiply
    98,744.22x = 148,138.25 × 38,778.48
  4. Step 4: Simplify right side
    98,744.22x = 5,744,575,970.97
  5. Step 5: Solve for x
    x = 5,744,575,970.97/98,744.22
  6. Step 6: Final answer
    x = 58,176.33

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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.