Home / 272,105.16-408,161.85-103,634.81

Finding the Fourth Proportional to 272,105.16, 408,161.85 and 103,634.81

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Solution

The fourth proportional to 272,105.16, 408,161.85 and 103,634.81 is: 155,453.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,105.16 : 408,161.85 = 103,634.81 : x
  2. Step 2: Convert to fraction form
    272,105.16/408,161.85 = 103,634.81/x
  3. Step 3: Cross multiply
    272,105.16x = 408,161.85 × 103,634.81
  4. Step 4: Simplify right side
    272,105.16x = 42,299,775,774.00
  5. Step 5: Solve for x
    x = 42,299,775,774.00/272,105.16
  6. Step 6: Final answer
    x = 155,453.78

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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.