Home / 140,414.61-193,749.51-79,986.43

Finding the Fourth Proportional to 140,414.61, 193,749.51 and 79,986.43

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Solution

The fourth proportional to 140,414.61, 193,749.51 and 79,986.43 is: 110,368.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,414.61 : 193,749.51 = 79,986.43 : x
  2. Step 2: Convert to fraction form
    140,414.61/193,749.51 = 79,986.43/x
  3. Step 3: Cross multiply
    140,414.61x = 193,749.51 × 79,986.43
  4. Step 4: Simplify right side
    140,414.61x = 15,497,331,619.15
  5. Step 5: Solve for x
    x = 15,497,331,619.15/140,414.61
  6. Step 6: Final answer
    x = 110,368.37

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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.