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Finding the Fourth Proportional to 169,495.40, 254,062.68 and 80,561.05

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Solution

The fourth proportional to 169,495.40, 254,062.68 and 80,561.05 is: 120,755.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,495.40 : 254,062.68 = 80,561.05 : x
  2. Step 2: Convert to fraction form
    169,495.40/254,062.68 = 80,561.05/x
  3. Step 3: Cross multiply
    169,495.40x = 254,062.68 × 80,561.05
  4. Step 4: Simplify right side
    169,495.40x = 20,467,555,329.35
  5. Step 5: Solve for x
    x = 20,467,555,329.35/169,495.40
  6. Step 6: Final answer
    x = 120,755.81

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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.