Home / 142,929.94-214,375.05-100,105.66

Finding the Fourth Proportional to 142,929.94, 214,375.05 and 100,105.66

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Solution

The fourth proportional to 142,929.94, 214,375.05 and 100,105.66 is: 150,144.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,929.94 : 214,375.05 = 100,105.66 : x
  2. Step 2: Convert to fraction form
    142,929.94/214,375.05 = 100,105.66/x
  3. Step 3: Cross multiply
    142,929.94x = 214,375.05 × 100,105.66
  4. Step 4: Simplify right side
    142,929.94x = 21,460,155,867.78
  5. Step 5: Solve for x
    x = 21,460,155,867.78/142,929.94
  6. Step 6: Final answer
    x = 150,144.58

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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.