Home / 217,829.04-300,568.78-136,147.66

Finding the Fourth Proportional to 217,829.04, 300,568.78 and 136,147.66

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Solution

The fourth proportional to 217,829.04, 300,568.78 and 136,147.66 is: 187,861.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,829.04 : 300,568.78 = 136,147.66 : x
  2. Step 2: Convert to fraction form
    217,829.04/300,568.78 = 136,147.66/x
  3. Step 3: Cross multiply
    217,829.04x = 300,568.78 × 136,147.66
  4. Step 4: Simplify right side
    217,829.04x = 40,921,736,066.05
  5. Step 5: Solve for x
    x = 40,921,736,066.05/217,829.04
  6. Step 6: Final answer
    x = 187,861.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.