Home / 129,996.33-179,221.46-103,227.45

Finding the Fourth Proportional to 129,996.33, 179,221.46 and 103,227.45

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Solution

The fourth proportional to 129,996.33, 179,221.46 and 103,227.45 is: 142,316.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,996.33 : 179,221.46 = 103,227.45 : x
  2. Step 2: Convert to fraction form
    129,996.33/179,221.46 = 103,227.45/x
  3. Step 3: Cross multiply
    129,996.33x = 179,221.46 × 103,227.45
  4. Step 4: Simplify right side
    129,996.33x = 18,500,573,784.94
  5. Step 5: Solve for x
    x = 18,500,573,784.94/129,996.33
  6. Step 6: Final answer
    x = 142,316.12

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1.5x scale

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.