Home / 126,082.08-188,962.56-66,945.60

Finding the Fourth Proportional to 126,082.08, 188,962.56 and 66,945.60

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Solution

The fourth proportional to 126,082.08, 188,962.56 and 66,945.60 is: 100,333.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,082.08 : 188,962.56 = 66,945.60 : x
  2. Step 2: Convert to fraction form
    126,082.08/188,962.56 = 66,945.60/x
  3. Step 3: Cross multiply
    126,082.08x = 188,962.56 × 66,945.60
  4. Step 4: Simplify right side
    126,082.08x = 12,650,211,956.74
  5. Step 5: Solve for x
    x = 12,650,211,956.74/126,082.08
  6. Step 6: Final answer
    x = 100,333.15

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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.