Home / 140,017.91-193,168.25-81,042.57

Finding the Fourth Proportional to 140,017.91, 193,168.25 and 81,042.57

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Solution

The fourth proportional to 140,017.91, 193,168.25 and 81,042.57 is: 111,806.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,017.91 : 193,168.25 = 81,042.57 : x
  2. Step 2: Convert to fraction form
    140,017.91/193,168.25 = 81,042.57/x
  3. Step 3: Cross multiply
    140,017.91x = 193,168.25 × 81,042.57
  4. Step 4: Simplify right side
    140,017.91x = 15,654,852,349.39
  5. Step 5: Solve for x
    x = 15,654,852,349.39/140,017.91
  6. Step 6: Final answer
    x = 111,806.07

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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.