Home / 124,778.20-187,340.10-98,512.60

Finding the Fourth Proportional to 124,778.20, 187,340.10 and 98,512.60

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Solution

The fourth proportional to 124,778.20, 187,340.10 and 98,512.60 is: 147,905.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,778.20 : 187,340.10 = 98,512.60 : x
  2. Step 2: Convert to fraction form
    124,778.20/187,340.10 = 98,512.60/x
  3. Step 3: Cross multiply
    124,778.20x = 187,340.10 × 98,512.60
  4. Step 4: Simplify right side
    124,778.20x = 18,455,360,335.26
  5. Step 5: Solve for x
    x = 18,455,360,335.26/124,778.20
  6. Step 6: Final answer
    x = 147,905.33

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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.