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Finding the Fourth Proportional to 168,039.76, 231,900.12 and 96,432.88

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Solution

The fourth proportional to 168,039.76, 231,900.12 and 96,432.88 is: 133,080.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,039.76 : 231,900.12 = 96,432.88 : x
  2. Step 2: Convert to fraction form
    168,039.76/231,900.12 = 96,432.88/x
  3. Step 3: Cross multiply
    168,039.76x = 231,900.12 × 96,432.88
  4. Step 4: Simplify right side
    168,039.76x = 22,362,796,443.95
  5. Step 5: Solve for x
    x = 22,362,796,443.95/168,039.76
  6. Step 6: Final answer
    x = 133,080.39

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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.