Home / 185,605.11-256,133.56-100,722.17

Finding the Fourth Proportional to 185,605.11, 256,133.56 and 100,722.17

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Solution

The fourth proportional to 185,605.11, 256,133.56 and 100,722.17 is: 138,995.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,605.11 : 256,133.56 = 100,722.17 : x
  2. Step 2: Convert to fraction form
    185,605.11/256,133.56 = 100,722.17/x
  3. Step 3: Cross multiply
    185,605.11x = 256,133.56 × 100,722.17
  4. Step 4: Simplify right side
    185,605.11x = 25,798,327,469.41
  5. Step 5: Solve for x
    x = 25,798,327,469.41/185,605.11
  6. Step 6: Final answer
    x = 138,995.78

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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.