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Finding the Fourth Proportional to 80,112.95, 120,160.77 and 26,798.88

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Solution

The fourth proportional to 80,112.95, 120,160.77 and 26,798.88 is: 40,195.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,112.95 : 120,160.77 = 26,798.88 : x
  2. Step 2: Convert to fraction form
    80,112.95/120,160.77 = 26,798.88/x
  3. Step 3: Cross multiply
    80,112.95x = 120,160.77 × 26,798.88
  4. Step 4: Simplify right side
    80,112.95x = 3,220,174,055.94
  5. Step 5: Solve for x
    x = 3,220,174,055.94/80,112.95
  6. Step 6: Final answer
    x = 40,195.43

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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.