Home / 121,284.20-181,926.30-108,453.80

Finding the Fourth Proportional to 121,284.20, 181,926.30 and 108,453.80

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Solution

The fourth proportional to 121,284.20, 181,926.30 and 108,453.80 is: 162,680.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,284.20 : 181,926.30 = 108,453.80 : x
  2. Step 2: Convert to fraction form
    121,284.20/181,926.30 = 108,453.80/x
  3. Step 3: Cross multiply
    121,284.20x = 181,926.30 × 108,453.80
  4. Step 4: Simplify right side
    121,284.20x = 19,730,598,554.94
  5. Step 5: Solve for x
    x = 19,730,598,554.94/121,284.20
  6. Step 6: Final answer
    x = 162,680.70

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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.