Home / 140,139.48-193,396.56-76,481.38

Finding the Fourth Proportional to 140,139.48, 193,396.56 and 76,481.38

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Solution

The fourth proportional to 140,139.48, 193,396.56 and 76,481.38 is: 105,546.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,139.48 : 193,396.56 = 76,481.38 : x
  2. Step 2: Convert to fraction form
    140,139.48/193,396.56 = 76,481.38/x
  3. Step 3: Cross multiply
    140,139.48x = 193,396.56 × 76,481.38
  4. Step 4: Simplify right side
    140,139.48x = 14,791,235,796.05
  5. Step 5: Solve for x
    x = 14,791,235,796.05/140,139.48
  6. Step 6: Final answer
    x = 105,546.53

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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.