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Finding the Fourth Proportional to 169,790.40, 254,685.60 and 80,998.20

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Solution

The fourth proportional to 169,790.40, 254,685.60 and 80,998.20 is: 121,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,790.40 : 254,685.60 = 80,998.20 : x
  2. Step 2: Convert to fraction form
    169,790.40/254,685.60 = 80,998.20/x
  3. Step 3: Cross multiply
    169,790.40x = 254,685.60 × 80,998.20
  4. Step 4: Simplify right side
    169,790.40x = 20,629,075,165.92
  5. Step 5: Solve for x
    x = 20,629,075,165.92/169,790.40
  6. Step 6: Final answer
    x = 121,497.30

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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.