Home / 148,772.26-205,309.29-81,705.70

Finding the Fourth Proportional to 148,772.26, 205,309.29 and 81,705.70

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Solution

The fourth proportional to 148,772.26, 205,309.29 and 81,705.70 is: 112,755.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,772.26 : 205,309.29 = 81,705.70 : x
  2. Step 2: Convert to fraction form
    148,772.26/205,309.29 = 81,705.70/x
  3. Step 3: Cross multiply
    148,772.26x = 205,309.29 × 81,705.70
  4. Step 4: Simplify right side
    148,772.26x = 16,774,939,255.95
  5. Step 5: Solve for x
    x = 16,774,939,255.95/148,772.26
  6. Step 6: Final answer
    x = 112,755.83

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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.