Home / 140,455.36-193,780.92-79,983.13

Finding the Fourth Proportional to 140,455.36, 193,780.92 and 79,983.13

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Solution

The fourth proportional to 140,455.36, 193,780.92 and 79,983.13 is: 110,349.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,455.36 : 193,780.92 = 79,983.13 : x
  2. Step 2: Convert to fraction form
    140,455.36/193,780.92 = 79,983.13/x
  3. Step 3: Cross multiply
    140,455.36x = 193,780.92 × 79,983.13
  4. Step 4: Simplify right side
    140,455.36x = 15,499,204,115.96
  5. Step 5: Solve for x
    x = 15,499,204,115.96/140,455.36
  6. Step 6: Final answer
    x = 110,349.68

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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.