Home / 129,970.49-194,512.14-108,934.29

Finding the Fourth Proportional to 129,970.49, 194,512.14 and 108,934.29

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Solution

The fourth proportional to 129,970.49, 194,512.14 and 108,934.29 is: 163,029.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,970.49 : 194,512.14 = 108,934.29 : x
  2. Step 2: Convert to fraction form
    129,970.49/194,512.14 = 108,934.29/x
  3. Step 3: Cross multiply
    129,970.49x = 194,512.14 × 108,934.29
  4. Step 4: Simplify right side
    129,970.49x = 21,189,041,867.28
  5. Step 5: Solve for x
    x = 21,189,041,867.28/129,970.49
  6. Step 6: Final answer
    x = 163,029.64

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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.