Home / 140,743.17-194,218.36-77,079.60

Finding the Fourth Proportional to 140,743.17, 194,218.36 and 77,079.60

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Solution

The fourth proportional to 140,743.17, 194,218.36 and 77,079.60 is: 106,365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,743.17 : 194,218.36 = 77,079.60 : x
  2. Step 2: Convert to fraction form
    140,743.17/194,218.36 = 77,079.60/x
  3. Step 3: Cross multiply
    140,743.17x = 194,218.36 × 77,079.60
  4. Step 4: Simplify right side
    140,743.17x = 14,970,273,308.76
  5. Step 5: Solve for x
    x = 14,970,273,308.76/140,743.17
  6. Step 6: Final answer
    x = 106,365.90

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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.