Home / 168,964.40-253,477.20-80,217.20

Finding the Fourth Proportional to 168,964.40, 253,477.20 and 80,217.20

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Solution

The fourth proportional to 168,964.40, 253,477.20 and 80,217.20 is: 120,340.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,964.40 : 253,477.20 = 80,217.20 : x
  2. Step 2: Convert to fraction form
    168,964.40/253,477.20 = 80,217.20/x
  3. Step 3: Cross multiply
    168,964.40x = 253,477.20 × 80,217.20
  4. Step 4: Simplify right side
    168,964.40x = 20,333,231,247.84
  5. Step 5: Solve for x
    x = 20,333,231,247.84/168,964.40
  6. Step 6: Final answer
    x = 120,340.33

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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.