Home / 148,365-204,743.70-81,295.56

Finding the Fourth Proportional to 148,365, 204,743.70 and 81,295.56

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Solution

The fourth proportional to 148,365, 204,743.70 and 81,295.56 is: 112,187.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,365 : 204,743.70 = 81,295.56 : x
  2. Step 2: Convert to fraction form
    148,365/204,743.70 = 81,295.56/x
  3. Step 3: Cross multiply
    148,365x = 204,743.70 × 81,295.56
  4. Step 4: Simplify right side
    148,365x = 16,644,753,747.97
  5. Step 5: Solve for x
    x = 16,644,753,747.97/148,365
  6. Step 6: Final answer
    x = 112,187.87

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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.