Home / 147,682.88-203,803.68-80,617.28

Finding the Fourth Proportional to 147,682.88, 203,803.68 and 80,617.28

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Solution

The fourth proportional to 147,682.88, 203,803.68 and 80,617.28 is: 111,252.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,682.88 : 203,803.68 = 80,617.28 : x
  2. Step 2: Convert to fraction form
    147,682.88/203,803.68 = 80,617.28/x
  3. Step 3: Cross multiply
    147,682.88x = 203,803.68 × 80,617.28
  4. Step 4: Simplify right side
    147,682.88x = 16,430,098,335.59
  5. Step 5: Solve for x
    x = 16,430,098,335.59/147,682.88
  6. Step 6: Final answer
    x = 111,252.56

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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.