Home / 99,360.20-148,989.10-36,998.60

Finding the Fourth Proportional to 99,360.20, 148,989.10 and 36,998.60

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Solution

The fourth proportional to 99,360.20, 148,989.10 and 36,998.60 is: 55,478.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,360.20 : 148,989.10 = 36,998.60 : x
  2. Step 2: Convert to fraction form
    99,360.20/148,989.10 = 36,998.60/x
  3. Step 3: Cross multiply
    99,360.20x = 148,989.10 × 36,998.60
  4. Step 4: Simplify right side
    99,360.20x = 5,512,388,115.26
  5. Step 5: Solve for x
    x = 5,512,388,115.26/99,360.20
  6. Step 6: Final answer
    x = 55,478.83

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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.