Home / 129,970.11-194,511.61-108,933.90

Finding the Fourth Proportional to 129,970.11, 194,511.61 and 108,933.90

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Solution

The fourth proportional to 129,970.11, 194,511.61 and 108,933.90 is: 163,029.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,970.11 : 194,511.61 = 108,933.90 : x
  2. Step 2: Convert to fraction form
    129,970.11/194,511.61 = 108,933.90/x
  3. Step 3: Cross multiply
    129,970.11x = 194,511.61 × 108,933.90
  4. Step 4: Simplify right side
    129,970.11x = 21,188,908,272.58
  5. Step 5: Solve for x
    x = 21,188,908,272.58/129,970.11
  6. Step 6: Final answer
    x = 163,029.09

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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.