Home / 99,738.90-149,615.10-40,575.60

Finding the Fourth Proportional to 99,738.90, 149,615.10 and 40,575.60

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Solution

The fourth proportional to 99,738.90, 149,615.10 and 40,575.60 is: 60,866.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,738.90 : 149,615.10 = 40,575.60 : x
  2. Step 2: Convert to fraction form
    99,738.90/149,615.10 = 40,575.60/x
  3. Step 3: Cross multiply
    99,738.90x = 149,615.10 × 40,575.60
  4. Step 4: Simplify right side
    99,738.90x = 6,070,722,451.56
  5. Step 5: Solve for x
    x = 6,070,722,451.56/99,738.90
  6. Step 6: Final answer
    x = 60,866.15

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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.