Home / 99,244.20-148,520.70-68,140.20

Finding the Fourth Proportional to 99,244.20, 148,520.70 and 68,140.20

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Solution

The fourth proportional to 99,244.20, 148,520.70 and 68,140.20 is: 101,973.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,244.20 : 148,520.70 = 68,140.20 : x
  2. Step 2: Convert to fraction form
    99,244.20/148,520.70 = 68,140.20/x
  3. Step 3: Cross multiply
    99,244.20x = 148,520.70 × 68,140.20
  4. Step 4: Simplify right side
    99,244.20x = 10,120,230,202.14
  5. Step 5: Solve for x
    x = 10,120,230,202.14/99,244.20
  6. Step 6: Final answer
    x = 101,973.01

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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.