Home / 199,319.12-299,029.20-66,200.07

Finding the Fourth Proportional to 199,319.12, 299,029.20 and 66,200.07

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Solution

The fourth proportional to 199,319.12, 299,029.20 and 66,200.07 is: 99,316.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,319.12 : 299,029.20 = 66,200.07 : x
  2. Step 2: Convert to fraction form
    199,319.12/299,029.20 = 66,200.07/x
  3. Step 3: Cross multiply
    199,319.12x = 299,029.20 × 66,200.07
  4. Step 4: Simplify right side
    199,319.12x = 19,795,753,972.04
  5. Step 5: Solve for x
    x = 19,795,753,972.04/199,319.12
  6. Step 6: Final answer
    x = 99,316.88

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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.