Home / 207,402.28-311,153.10-67,161.16

Finding the Fourth Proportional to 207,402.28, 311,153.10 and 67,161.16

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Solution

The fourth proportional to 207,402.28, 311,153.10 and 67,161.16 is: 100,757.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,402.28 : 311,153.10 = 67,161.16 : x
  2. Step 2: Convert to fraction form
    207,402.28/311,153.10 = 67,161.16/x
  3. Step 3: Cross multiply
    207,402.28x = 311,153.10 × 67,161.16
  4. Step 4: Simplify right side
    207,402.28x = 20,897,403,133.60
  5. Step 5: Solve for x
    x = 20,897,403,133.60/207,402.28
  6. Step 6: Final answer
    x = 100,757.83

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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.