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Finding the Fourth Proportional to 100,585.67, 150,679.24 and 68,917.91

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Solution

The fourth proportional to 100,585.67, 150,679.24 and 68,917.91 is: 103,240.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,585.67 : 150,679.24 = 68,917.91 : x
  2. Step 2: Convert to fraction form
    100,585.67/150,679.24 = 68,917.91/x
  3. Step 3: Cross multiply
    100,585.67x = 150,679.24 × 68,917.91
  4. Step 4: Simplify right side
    100,585.67x = 10,384,498,301.19
  5. Step 5: Solve for x
    x = 10,384,498,301.19/100,585.67
  6. Step 6: Final answer
    x = 103,240.34

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1.5x scale

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.