Home / 136,913.76-205,447.97-73,732.55

Finding the Fourth Proportional to 136,913.76, 205,447.97 and 73,732.55

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Solution

The fourth proportional to 136,913.76, 205,447.97 and 73,732.55 is: 110,640.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,913.76 : 205,447.97 = 73,732.55 : x
  2. Step 2: Convert to fraction form
    136,913.76/205,447.97 = 73,732.55/x
  3. Step 3: Cross multiply
    136,913.76x = 205,447.97 × 73,732.55
  4. Step 4: Simplify right side
    136,913.76x = 15,148,202,720.42
  5. Step 5: Solve for x
    x = 15,148,202,720.42/136,913.76
  6. Step 6: Final answer
    x = 110,640.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.