Home / 148,971.89-205,585.26-80,993.44

Finding the Fourth Proportional to 148,971.89, 205,585.26 and 80,993.44

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Solution

The fourth proportional to 148,971.89, 205,585.26 and 80,993.44 is: 111,773.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,971.89 : 205,585.26 = 80,993.44 : x
  2. Step 2: Convert to fraction form
    148,971.89/205,585.26 = 80,993.44/x
  3. Step 3: Cross multiply
    148,971.89x = 205,585.26 × 80,993.44
  4. Step 4: Simplify right side
    148,971.89x = 16,651,056,392.77
  5. Step 5: Solve for x
    x = 16,651,056,392.77/148,971.89
  6. Step 6: Final answer
    x = 111,773.15

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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.