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Finding the Fourth Proportional to 169,080.80, 253,627.04 and 80,288.48

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Solution

The fourth proportional to 169,080.80, 253,627.04 and 80,288.48 is: 120,435.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,080.80 : 253,627.04 = 80,288.48 : x
  2. Step 2: Convert to fraction form
    169,080.80/253,627.04 = 80,288.48/x
  3. Step 3: Cross multiply
    169,080.80x = 253,627.04 × 80,288.48
  4. Step 4: Simplify right side
    169,080.80x = 20,363,329,528.50
  5. Step 5: Solve for x
    x = 20,363,329,528.50/169,080.80
  6. Step 6: Final answer
    x = 120,435.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.