Home / 140,553.29-193,968.13-76,891.09

Finding the Fourth Proportional to 140,553.29, 193,968.13 and 76,891.09

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Solution

The fourth proportional to 140,553.29, 193,968.13 and 76,891.09 is: 106,112.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,553.29 : 193,968.13 = 76,891.09 : x
  2. Step 2: Convert to fraction form
    140,553.29/193,968.13 = 76,891.09/x
  3. Step 3: Cross multiply
    140,553.29x = 193,968.13 × 76,891.09
  4. Step 4: Simplify right side
    140,553.29x = 14,914,421,279.54
  5. Step 5: Solve for x
    x = 14,914,421,279.54/140,553.29
  6. Step 6: Final answer
    x = 106,112.22

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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.