Home / 204,543.46-306,807.90-71,423.20

Finding the Fourth Proportional to 204,543.46, 306,807.90 and 71,423.20

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Solution

The fourth proportional to 204,543.46, 306,807.90 and 71,423.20 is: 107,132.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,543.46 : 306,807.90 = 71,423.20 : x
  2. Step 2: Convert to fraction form
    204,543.46/306,807.90 = 71,423.20/x
  3. Step 3: Cross multiply
    204,543.46x = 306,807.90 × 71,423.20
  4. Step 4: Simplify right side
    204,543.46x = 21,913,202,003.28
  5. Step 5: Solve for x
    x = 21,913,202,003.28/204,543.46
  6. Step 6: Final answer
    x = 107,132.25

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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.