Home / 140,505.78-193,897.55-75,974.57

Finding the Fourth Proportional to 140,505.78, 193,897.55 and 75,974.57

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Solution

The fourth proportional to 140,505.78, 193,897.55 and 75,974.57 is: 104,844.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,505.78 : 193,897.55 = 75,974.57 : x
  2. Step 2: Convert to fraction form
    140,505.78/193,897.55 = 75,974.57/x
  3. Step 3: Cross multiply
    140,505.78x = 193,897.55 × 75,974.57
  4. Step 4: Simplify right side
    140,505.78x = 14,731,283,659.98
  5. Step 5: Solve for x
    x = 14,731,283,659.98/140,505.78
  6. Step 6: Final answer
    x = 104,844.68

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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.