Home / 133,819.08-200,839.05-67,278.12

Finding the Fourth Proportional to 133,819.08, 200,839.05 and 67,278.12

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Solution

The fourth proportional to 133,819.08, 200,839.05 and 67,278.12 is: 100,972.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,819.08 : 200,839.05 = 67,278.12 : x
  2. Step 2: Convert to fraction form
    133,819.08/200,839.05 = 67,278.12/x
  3. Step 3: Cross multiply
    133,819.08x = 200,839.05 × 67,278.12
  4. Step 4: Simplify right side
    133,819.08x = 13,512,074,460.98
  5. Step 5: Solve for x
    x = 13,512,074,460.98/133,819.08
  6. Step 6: Final answer
    x = 100,972.70

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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.