Home / 102,969.20-154,439.40-32,855.60

Finding the Fourth Proportional to 102,969.20, 154,439.40 and 32,855.60

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Solution

The fourth proportional to 102,969.20, 154,439.40 and 32,855.60 is: 49,278.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,969.20 : 154,439.40 = 32,855.60 : x
  2. Step 2: Convert to fraction form
    102,969.20/154,439.40 = 32,855.60/x
  3. Step 3: Cross multiply
    102,969.20x = 154,439.40 × 32,855.60
  4. Step 4: Simplify right side
    102,969.20x = 5,074,199,150.64
  5. Step 5: Solve for x
    x = 5,074,199,150.64/102,969.20
  6. Step 6: Final answer
    x = 49,278.81

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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.