Home / 193,278.78-266,753.82-117,871.02

Finding the Fourth Proportional to 193,278.78, 266,753.82 and 117,871.02

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Solution

The fourth proportional to 193,278.78, 266,753.82 and 117,871.02 is: 162,679.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,278.78 : 266,753.82 = 117,871.02 : x
  2. Step 2: Convert to fraction form
    193,278.78/266,753.82 = 117,871.02/x
  3. Step 3: Cross multiply
    193,278.78x = 266,753.82 × 117,871.02
  4. Step 4: Simplify right side
    193,278.78x = 31,442,544,852.30
  5. Step 5: Solve for x
    x = 31,442,544,852.30/193,278.78
  6. Step 6: Final answer
    x = 162,679.76

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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.