Home / 168,330.12-252,301.20-68,380.50

Finding the Fourth Proportional to 168,330.12, 252,301.20 and 68,380.50

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Solution

The fourth proportional to 168,330.12, 252,301.20 and 68,380.50 is: 102,491.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,330.12 : 252,301.20 = 68,380.50 : x
  2. Step 2: Convert to fraction form
    168,330.12/252,301.20 = 68,380.50/x
  3. Step 3: Cross multiply
    168,330.12x = 252,301.20 × 68,380.50
  4. Step 4: Simplify right side
    168,330.12x = 17,252,482,206.60
  5. Step 5: Solve for x
    x = 17,252,482,206.60/168,330.12
  6. Step 6: Final answer
    x = 102,491.95

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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.