Home / 140,023.07-193,243.39-79,612.73

Finding the Fourth Proportional to 140,023.07, 193,243.39 and 79,612.73

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Solution

The fourth proportional to 140,023.07, 193,243.39 and 79,612.73 is: 109,872.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,023.07 : 193,243.39 = 79,612.73 : x
  2. Step 2: Convert to fraction form
    140,023.07/193,243.39 = 79,612.73/x
  3. Step 3: Cross multiply
    140,023.07x = 193,243.39 × 79,612.73
  4. Step 4: Simplify right side
    140,023.07x = 15,384,632,667.11
  5. Step 5: Solve for x
    x = 15,384,632,667.11/140,023.07
  6. Step 6: Final answer
    x = 109,872.13

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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.