Home / 148,943.23-205,541.27-80,960.20

Finding the Fourth Proportional to 148,943.23, 205,541.27 and 80,960.20

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Solution

The fourth proportional to 148,943.23, 205,541.27 and 80,960.20 is: 111,724.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,943.23 : 205,541.27 = 80,960.20 : x
  2. Step 2: Convert to fraction form
    148,943.23/205,541.27 = 80,960.20/x
  3. Step 3: Cross multiply
    148,943.23x = 205,541.27 × 80,960.20
  4. Step 4: Simplify right side
    148,943.23x = 16,640,662,327.45
  5. Step 5: Solve for x
    x = 16,640,662,327.45/148,943.23
  6. Step 6: Final answer
    x = 111,724.87

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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.