Home / 198,386.75-273,764.56-112,343.76

Finding the Fourth Proportional to 198,386.75, 273,764.56 and 112,343.76

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Solution

The fourth proportional to 198,386.75, 273,764.56 and 112,343.76 is: 155,029.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,386.75 : 273,764.56 = 112,343.76 : x
  2. Step 2: Convert to fraction form
    198,386.75/273,764.56 = 112,343.76/x
  3. Step 3: Cross multiply
    198,386.75x = 273,764.56 × 112,343.76
  4. Step 4: Simplify right side
    198,386.75x = 30,755,740,025.15
  5. Step 5: Solve for x
    x = 30,755,740,025.15/198,386.75
  6. Step 6: Final answer
    x = 155,029.20

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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.