Home / 102,994.20-154,637.10-80,832.60

Finding the Fourth Proportional to 102,994.20, 154,637.10 and 80,832.60

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Solution

The fourth proportional to 102,994.20, 154,637.10 and 80,832.60 is: 121,363.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,994.20 : 154,637.10 = 80,832.60 : x
  2. Step 2: Convert to fraction form
    102,994.20/154,637.10 = 80,832.60/x
  3. Step 3: Cross multiply
    102,994.20x = 154,637.10 × 80,832.60
  4. Step 4: Simplify right side
    102,994.20x = 12,499,718,849.46
  5. Step 5: Solve for x
    x = 12,499,718,849.46/102,994.20
  6. Step 6: Final answer
    x = 121,363.33

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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.