Home / 148,971.64-205,584.92-80,993.19

Finding the Fourth Proportional to 148,971.64, 205,584.92 and 80,993.19

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Solution

The fourth proportional to 148,971.64, 205,584.92 and 80,993.19 is: 111,772.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,971.64 : 205,584.92 = 80,993.19 : x
  2. Step 2: Convert to fraction form
    148,971.64/205,584.92 = 80,993.19/x
  3. Step 3: Cross multiply
    148,971.64x = 205,584.92 × 80,993.19
  4. Step 4: Simplify right side
    148,971.64x = 16,650,977,053.80
  5. Step 5: Solve for x
    x = 16,650,977,053.80/148,971.64
  6. Step 6: Final answer
    x = 111,772.80

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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.