Home / 140,006.20-193,122.66-89,617.72

Finding the Fourth Proportional to 140,006.20, 193,122.66 and 89,617.72

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Solution

The fourth proportional to 140,006.20, 193,122.66 and 89,617.72 is: 123,617.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,006.20 : 193,122.66 = 89,617.72 : x
  2. Step 2: Convert to fraction form
    140,006.20/193,122.66 = 89,617.72/x
  3. Step 3: Cross multiply
    140,006.20x = 193,122.66 × 89,617.72
  4. Step 4: Simplify right side
    140,006.20x = 17,307,212,469.54
  5. Step 5: Solve for x
    x = 17,307,212,469.54/140,006.20
  6. Step 6: Final answer
    x = 123,617.47

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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.