Home / 147,173.56-203,105.78-83,517.28

Finding the Fourth Proportional to 147,173.56, 203,105.78 and 83,517.28

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Solution

The fourth proportional to 147,173.56, 203,105.78 and 83,517.28 is: 115,257.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,173.56 : 203,105.78 = 83,517.28 : x
  2. Step 2: Convert to fraction form
    147,173.56/203,105.78 = 83,517.28/x
  3. Step 3: Cross multiply
    147,173.56x = 203,105.78 × 83,517.28
  4. Step 4: Simplify right side
    147,173.56x = 16,962,841,685.72
  5. Step 5: Solve for x
    x = 16,962,841,685.72/147,173.56
  6. Step 6: Final answer
    x = 115,257.40

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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.