Home / 138,183.22-207,274.85-38,343.43

Finding the Fourth Proportional to 138,183.22, 207,274.85 and 38,343.43

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Solution

The fourth proportional to 138,183.22, 207,274.85 and 38,343.43 is: 57,515.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,183.22 : 207,274.85 = 38,343.43 : x
  2. Step 2: Convert to fraction form
    138,183.22/207,274.85 = 38,343.43/x
  3. Step 3: Cross multiply
    138,183.22x = 207,274.85 × 38,343.43
  4. Step 4: Simplify right side
    138,183.22x = 7,947,628,701.74
  5. Step 5: Solve for x
    x = 7,947,628,701.74/138,183.22
  6. Step 6: Final answer
    x = 57,515.15

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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.