Home / 147,621.75-203,718.03-80,553.75

Finding the Fourth Proportional to 147,621.75, 203,718.03 and 80,553.75

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Solution

The fourth proportional to 147,621.75, 203,718.03 and 80,553.75 is: 111,164.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,621.75 : 203,718.03 = 80,553.75 : x
  2. Step 2: Convert to fraction form
    147,621.75/203,718.03 = 80,553.75/x
  3. Step 3: Cross multiply
    147,621.75x = 203,718.03 × 80,553.75
  4. Step 4: Simplify right side
    147,621.75x = 16,410,251,259.11
  5. Step 5: Solve for x
    x = 16,410,251,259.11/147,621.75
  6. Step 6: Final answer
    x = 111,164.18

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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.