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Finding the Fourth Proportional to 119,797.28, 179,713.12 and 39,808.04

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Solution

The fourth proportional to 119,797.28, 179,713.12 and 39,808.04 is: 59,717.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,797.28 : 179,713.12 = 39,808.04 : x
  2. Step 2: Convert to fraction form
    119,797.28/179,713.12 = 39,808.04/x
  3. Step 3: Cross multiply
    119,797.28x = 179,713.12 × 39,808.04
  4. Step 4: Simplify right side
    119,797.28x = 7,154,027,069.48
  5. Step 5: Solve for x
    x = 7,154,027,069.48/119,797.28
  6. Step 6: Final answer
    x = 59,717.78

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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.