Home / 140,080.39-193,327.51-79,660.11

Finding the Fourth Proportional to 140,080.39, 193,327.51 and 79,660.11

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Solution

The fourth proportional to 140,080.39, 193,327.51 and 79,660.11 is: 109,940.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,080.39 : 193,327.51 = 79,660.11 : x
  2. Step 2: Convert to fraction form
    140,080.39/193,327.51 = 79,660.11/x
  3. Step 3: Cross multiply
    140,080.39x = 193,327.51 × 79,660.11
  4. Step 4: Simplify right side
    140,080.39x = 15,400,490,300.35
  5. Step 5: Solve for x
    x = 15,400,490,300.35/140,080.39
  6. Step 6: Final answer
    x = 109,940.37

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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.