Home / 127,538.28-191,212.20-87,982.56

Finding the Fourth Proportional to 127,538.28, 191,212.20 and 87,982.56

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Solution

The fourth proportional to 127,538.28, 191,212.20 and 87,982.56 is: 131,908.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,538.28 : 191,212.20 = 87,982.56 : x
  2. Step 2: Convert to fraction form
    127,538.28/191,212.20 = 87,982.56/x
  3. Step 3: Cross multiply
    127,538.28x = 191,212.20 × 87,982.56
  4. Step 4: Simplify right side
    127,538.28x = 16,823,338,859.23
  5. Step 5: Solve for x
    x = 16,823,338,859.23/127,538.28
  6. Step 6: Final answer
    x = 131,908.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.