Home / 80,456.38-121,166.37-73,273.84

Finding the Fourth Proportional to 80,456.38, 121,166.37 and 73,273.84

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Solution

The fourth proportional to 80,456.38, 121,166.37 and 73,273.84 is: 110,349.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,456.38 : 121,166.37 = 73,273.84 : x
  2. Step 2: Convert to fraction form
    80,456.38/121,166.37 = 73,273.84/x
  3. Step 3: Cross multiply
    80,456.38x = 121,166.37 × 73,273.84
  4. Step 4: Simplify right side
    80,456.38x = 8,878,325,208.76
  5. Step 5: Solve for x
    x = 8,878,325,208.76/80,456.38
  6. Step 6: Final answer
    x = 110,349.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.