Home / 100,188.12-150,225.88-68,633.76

Finding the Fourth Proportional to 100,188.12, 150,225.88 and 68,633.76

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Solution

The fourth proportional to 100,188.12, 150,225.88 and 68,633.76 is: 102,912.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,188.12 : 150,225.88 = 68,633.76 : x
  2. Step 2: Convert to fraction form
    100,188.12/150,225.88 = 68,633.76/x
  3. Step 3: Cross multiply
    100,188.12x = 150,225.88 × 68,633.76
  4. Step 4: Simplify right side
    100,188.12x = 10,310,566,446.56
  5. Step 5: Solve for x
    x = 10,310,566,446.56/100,188.12
  6. Step 6: Final answer
    x = 102,912.07

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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.