Home / 193,023.76-266,372.40-108,139

Finding the Fourth Proportional to 193,023.76, 266,372.40 and 108,139

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Solution

The fourth proportional to 193,023.76, 266,372.40 and 108,139 is: 149,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,023.76 : 266,372.40 = 108,139 : x
  2. Step 2: Convert to fraction form
    193,023.76/266,372.40 = 108,139/x
  3. Step 3: Cross multiply
    193,023.76x = 266,372.40 × 108,139
  4. Step 4: Simplify right side
    193,023.76x = 28,805,244,963.60
  5. Step 5: Solve for x
    x = 28,805,244,963.60/193,023.76
  6. Step 6: Final answer
    x = 149,231.60

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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.