Home / 99,540.10-149,108.55-61,984.90

Finding the Fourth Proportional to 99,540.10, 149,108.55 and 61,984.90

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Solution

The fourth proportional to 99,540.10, 149,108.55 and 61,984.90 is: 92,851.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,540.10 : 149,108.55 = 61,984.90 : x
  2. Step 2: Convert to fraction form
    99,540.10/149,108.55 = 61,984.90/x
  3. Step 3: Cross multiply
    99,540.10x = 149,108.55 × 61,984.90
  4. Step 4: Simplify right side
    99,540.10x = 9,242,478,560.90
  5. Step 5: Solve for x
    x = 9,242,478,560.90/99,540.10
  6. Step 6: Final answer
    x = 92,851.81

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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.