Home / 148,859.86-205,414.69-85,183.06

Finding the Fourth Proportional to 148,859.86, 205,414.69 and 85,183.06

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Solution

The fourth proportional to 148,859.86, 205,414.69 and 85,183.06 is: 117,545.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,859.86 : 205,414.69 = 85,183.06 : x
  2. Step 2: Convert to fraction form
    148,859.86/205,414.69 = 85,183.06/x
  3. Step 3: Cross multiply
    148,859.86x = 205,414.69 × 85,183.06
  4. Step 4: Simplify right side
    148,859.86x = 17,497,851,863.15
  5. Step 5: Solve for x
    x = 17,497,851,863.15/148,859.86
  6. Step 6: Final answer
    x = 117,545.80

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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.