Home / 148,974.40-205,588.72-80,995.94

Finding the Fourth Proportional to 148,974.40, 205,588.72 and 80,995.94

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Solution

The fourth proportional to 148,974.40, 205,588.72 and 80,995.94 is: 111,776.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,974.40 : 205,588.72 = 80,995.94 : x
  2. Step 2: Convert to fraction form
    148,974.40/205,588.72 = 80,995.94/x
  3. Step 3: Cross multiply
    148,974.40x = 205,588.72 × 80,995.94
  4. Step 4: Simplify right side
    148,974.40x = 16,651,851,629.80
  5. Step 5: Solve for x
    x = 16,651,851,629.80/148,974.40
  6. Step 6: Final answer
    x = 111,776.60

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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.