Home / 84,173.44-126,264.46-79,917

Finding the Fourth Proportional to 84,173.44, 126,264.46 and 79,917

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Solution

The fourth proportional to 84,173.44, 126,264.46 and 79,917 is: 119,879.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,173.44 : 126,264.46 = 79,917 : x
  2. Step 2: Convert to fraction form
    84,173.44/126,264.46 = 79,917/x
  3. Step 3: Cross multiply
    84,173.44x = 126,264.46 × 79,917
  4. Step 4: Simplify right side
    84,173.44x = 10,090,676,849.82
  5. Step 5: Solve for x
    x = 10,090,676,849.82/84,173.44
  6. Step 6: Final answer
    x = 119,879.58

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1.5x scale

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.