Home / 168,789.16-253,183.68-68,931.94

Finding the Fourth Proportional to 168,789.16, 253,183.68 and 68,931.94

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Solution

The fourth proportional to 168,789.16, 253,183.68 and 68,931.94 is: 103,397.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,789.16 : 253,183.68 = 68,931.94 : x
  2. Step 2: Convert to fraction form
    168,789.16/253,183.68 = 68,931.94/x
  3. Step 3: Cross multiply
    168,789.16x = 253,183.68 × 68,931.94
  4. Step 4: Simplify right side
    168,789.16x = 17,452,442,238.74
  5. Step 5: Solve for x
    x = 17,452,442,238.74/168,789.16
  6. Step 6: Final answer
    x = 103,397.89

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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.