Home / 148,456.39-204,882.78-81,401.35

Finding the Fourth Proportional to 148,456.39, 204,882.78 and 81,401.35

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Solution

The fourth proportional to 148,456.39, 204,882.78 and 81,401.35 is: 112,340.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,456.39 : 204,882.78 = 81,401.35 : x
  2. Step 2: Convert to fraction form
    148,456.39/204,882.78 = 81,401.35/x
  3. Step 3: Cross multiply
    148,456.39x = 204,882.78 × 81,401.35
  4. Step 4: Simplify right side
    148,456.39x = 16,677,734,883.75
  5. Step 5: Solve for x
    x = 16,677,734,883.75/148,456.39
  6. Step 6: Final answer
    x = 112,340.97

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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.