Home / 217,829.04-300,568.76-136,147.68

Finding the Fourth Proportional to 217,829.04, 300,568.76 and 136,147.68

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Solution

The fourth proportional to 217,829.04, 300,568.76 and 136,147.68 is: 187,861.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,829.04 : 300,568.76 = 136,147.68 : x
  2. Step 2: Convert to fraction form
    217,829.04/300,568.76 = 136,147.68/x
  3. Step 3: Cross multiply
    217,829.04x = 300,568.76 × 136,147.68
  4. Step 4: Simplify right side
    217,829.04x = 40,921,739,354.48
  5. Step 5: Solve for x
    x = 40,921,739,354.48/217,829.04
  6. Step 6: Final answer
    x = 187,861.73

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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.