Home / 148,785.26-205,360.11-91,438.47

Finding the Fourth Proportional to 148,785.26, 205,360.11 and 91,438.47

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Solution

The fourth proportional to 148,785.26, 205,360.11 and 91,438.47 is: 126,207.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,785.26 : 205,360.11 = 91,438.47 : x
  2. Step 2: Convert to fraction form
    148,785.26/205,360.11 = 91,438.47/x
  3. Step 3: Cross multiply
    148,785.26x = 205,360.11 × 91,438.47
  4. Step 4: Simplify right side
    148,785.26x = 18,777,814,257.43
  5. Step 5: Solve for x
    x = 18,777,814,257.43/148,785.26
  6. Step 6: Final answer
    x = 126,207.49

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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.