Home / 109,613.20-164,241.60-99,115.60

Finding the Fourth Proportional to 109,613.20, 164,241.60 and 99,115.60

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Solution

The fourth proportional to 109,613.20, 164,241.60 and 99,115.60 is: 148,512.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,613.20 : 164,241.60 = 99,115.60 : x
  2. Step 2: Convert to fraction form
    109,613.20/164,241.60 = 99,115.60/x
  3. Step 3: Cross multiply
    109,613.20x = 164,241.60 × 99,115.60
  4. Step 4: Simplify right side
    109,613.20x = 16,278,904,728.96
  5. Step 5: Solve for x
    x = 16,278,904,728.96/109,613.20
  6. Step 6: Final answer
    x = 148,512.27

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1.5x scale

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.