Home / 138,723.33-191,438.30-96,306.46

Finding the Fourth Proportional to 138,723.33, 191,438.30 and 96,306.46

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Solution

The fourth proportional to 138,723.33, 191,438.30 and 96,306.46 is: 132,902.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,723.33 : 191,438.30 = 96,306.46 : x
  2. Step 2: Convert to fraction form
    138,723.33/191,438.30 = 96,306.46/x
  3. Step 3: Cross multiply
    138,723.33x = 191,438.30 × 96,306.46
  4. Step 4: Simplify right side
    138,723.33x = 18,436,744,981.42
  5. Step 5: Solve for x
    x = 18,436,744,981.42/138,723.33
  6. Step 6: Final answer
    x = 132,902.99

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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.