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Finding the Fourth Proportional to 129,794.58, 179,101.28 and 75,334.19

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Solution

The fourth proportional to 129,794.58, 179,101.28 and 75,334.19 is: 103,952.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,794.58 : 179,101.28 = 75,334.19 : x
  2. Step 2: Convert to fraction form
    129,794.58/179,101.28 = 75,334.19/x
  3. Step 3: Cross multiply
    129,794.58x = 179,101.28 × 75,334.19
  4. Step 4: Simplify right side
    129,794.58x = 13,492,448,584.59
  5. Step 5: Solve for x
    x = 13,492,448,584.59/129,794.58
  6. Step 6: Final answer
    x = 103,952.33

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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.