Home / 198,018.84-273,177.45-117,449.76

Finding the Fourth Proportional to 198,018.84, 273,177.45 and 117,449.76

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Solution

The fourth proportional to 198,018.84, 273,177.45 and 117,449.76 is: 162,028.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,018.84 : 273,177.45 = 117,449.76 : x
  2. Step 2: Convert to fraction form
    198,018.84/273,177.45 = 117,449.76/x
  3. Step 3: Cross multiply
    198,018.84x = 273,177.45 × 117,449.76
  4. Step 4: Simplify right side
    198,018.84x = 32,084,625,939.91
  5. Step 5: Solve for x
    x = 32,084,625,939.91/198,018.84
  6. Step 6: Final answer
    x = 162,028.15

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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.