Home / 140,553.36-193,963.59-76,891.20

Finding the Fourth Proportional to 140,553.36, 193,963.59 and 76,891.20

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Solution

The fourth proportional to 140,553.36, 193,963.59 and 76,891.20 is: 106,109.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,553.36 : 193,963.59 = 76,891.20 : x
  2. Step 2: Convert to fraction form
    140,553.36/193,963.59 = 76,891.20/x
  3. Step 3: Cross multiply
    140,553.36x = 193,963.59 × 76,891.20
  4. Step 4: Simplify right side
    140,553.36x = 14,914,093,191.41
  5. Step 5: Solve for x
    x = 14,914,093,191.41/140,553.36
  6. Step 6: Final answer
    x = 106,109.83

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1.5x scale

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.