Home / 148,773.26-205,310.67-81,706.70

Finding the Fourth Proportional to 148,773.26, 205,310.67 and 81,706.70

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Solution

The fourth proportional to 148,773.26, 205,310.67 and 81,706.70 is: 112,757.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,773.26 : 205,310.67 = 81,706.70 : x
  2. Step 2: Convert to fraction form
    148,773.26/205,310.67 = 81,706.70/x
  3. Step 3: Cross multiply
    148,773.26x = 205,310.67 × 81,706.70
  4. Step 4: Simplify right side
    148,773.26x = 16,775,257,320.49
  5. Step 5: Solve for x
    x = 16,775,257,320.49/148,773.26
  6. Step 6: Final answer
    x = 112,757.21

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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.