Home / 148,974.05-205,588.25-80,995.60

Finding the Fourth Proportional to 148,974.05, 205,588.25 and 80,995.60

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Solution

The fourth proportional to 148,974.05, 205,588.25 and 80,995.60 is: 111,776.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,974.05 : 205,588.25 = 80,995.60 : x
  2. Step 2: Convert to fraction form
    148,974.05/205,588.25 = 80,995.60/x
  3. Step 3: Cross multiply
    148,974.05x = 205,588.25 × 80,995.60
  4. Step 4: Simplify right side
    148,974.05x = 16,651,744,189.80
  5. Step 5: Solve for x
    x = 16,651,744,189.80/148,974.05
  6. Step 6: Final answer
    x = 111,776.14

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1.5x scale

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.