Home / 147,563.28-203,637.96-80,496.72

Finding the Fourth Proportional to 147,563.28, 203,637.96 and 80,496.72

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Solution

The fourth proportional to 147,563.28, 203,637.96 and 80,496.72 is: 111,085.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,563.28 : 203,637.96 = 80,496.72 : x
  2. Step 2: Convert to fraction form
    147,563.28/203,637.96 = 80,496.72/x
  3. Step 3: Cross multiply
    147,563.28x = 203,637.96 × 80,496.72
  4. Step 4: Simplify right side
    147,563.28x = 16,392,187,847.49
  5. Step 5: Solve for x
    x = 16,392,187,847.49/147,563.28
  6. Step 6: Final answer
    x = 111,085.82

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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.