Home / 168,725.28-252,992.07-68,768.40

Finding the Fourth Proportional to 168,725.28, 252,992.07 and 68,768.40

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Solution

The fourth proportional to 168,725.28, 252,992.07 and 68,768.40 is: 103,113.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,725.28 : 252,992.07 = 68,768.40 : x
  2. Step 2: Convert to fraction form
    168,725.28/252,992.07 = 68,768.40/x
  3. Step 3: Cross multiply
    168,725.28x = 252,992.07 × 68,768.40
  4. Step 4: Simplify right side
    168,725.28x = 17,397,859,866.59
  5. Step 5: Solve for x
    x = 17,397,859,866.59/168,725.28
  6. Step 6: Final answer
    x = 103,113.53

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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.