Home / 199,861.64-275,809.88-109,217.36

Finding the Fourth Proportional to 199,861.64, 275,809.88 and 109,217.36

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Solution

The fourth proportional to 199,861.64, 275,809.88 and 109,217.36 is: 150,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,861.64 : 275,809.88 = 109,217.36 : x
  2. Step 2: Convert to fraction form
    199,861.64/275,809.88 = 109,217.36/x
  3. Step 3: Cross multiply
    199,861.64x = 275,809.88 × 109,217.36
  4. Step 4: Simplify right side
    199,861.64x = 30,123,226,955.52
  5. Step 5: Solve for x
    x = 30,123,226,955.52/199,861.64
  6. Step 6: Final answer
    x = 150,720.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.