Home / 140,131.59-193,387.40-79,712.88

Finding the Fourth Proportional to 140,131.59, 193,387.40 and 79,712.88

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Solution

The fourth proportional to 140,131.59, 193,387.40 and 79,712.88 is: 110,007.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,131.59 : 193,387.40 = 79,712.88 : x
  2. Step 2: Convert to fraction form
    140,131.59/193,387.40 = 79,712.88/x
  3. Step 3: Cross multiply
    140,131.59x = 193,387.40 × 79,712.88
  4. Step 4: Simplify right side
    140,131.59x = 15,415,466,609.71
  5. Step 5: Solve for x
    x = 15,415,466,609.71/140,131.59
  6. Step 6: Final answer
    x = 110,007.08

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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.