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Finding the Fourth Proportional to 134,609.04, 185,717.16 and 80,914.32

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Solution

The fourth proportional to 134,609.04, 185,717.16 and 80,914.32 is: 111,635.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,609.04 : 185,717.16 = 80,914.32 : x
  2. Step 2: Convert to fraction form
    134,609.04/185,717.16 = 80,914.32/x
  3. Step 3: Cross multiply
    134,609.04x = 185,717.16 × 80,914.32
  4. Step 4: Simplify right side
    134,609.04x = 15,027,177,713.73
  5. Step 5: Solve for x
    x = 15,027,177,713.73/134,609.04
  6. Step 6: Final answer
    x = 111,635.72

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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.