Home / 168,728.28-252,996.57-68,771.40

Finding the Fourth Proportional to 168,728.28, 252,996.57 and 68,771.40

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Solution

The fourth proportional to 168,728.28, 252,996.57 and 68,771.40 is: 103,118.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,728.28 : 252,996.57 = 68,771.40 : x
  2. Step 2: Convert to fraction form
    168,728.28/252,996.57 = 68,771.40/x
  3. Step 3: Cross multiply
    168,728.28x = 252,996.57 × 68,771.40
  4. Step 4: Simplify right side
    168,728.28x = 17,398,928,314.10
  5. Step 5: Solve for x
    x = 17,398,928,314.10/168,728.28
  6. Step 6: Final answer
    x = 103,118.03

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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.