Home / 150,961.75-208,338.10-90,531.29

Finding the Fourth Proportional to 150,961.75, 208,338.10 and 90,531.29

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Solution

The fourth proportional to 150,961.75, 208,338.10 and 90,531.29 is: 124,939.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,961.75 : 208,338.10 = 90,531.29 : x
  2. Step 2: Convert to fraction form
    150,961.75/208,338.10 = 90,531.29/x
  3. Step 3: Cross multiply
    150,961.75x = 208,338.10 × 90,531.29
  4. Step 4: Simplify right side
    150,961.75x = 18,861,117,243.67
  5. Step 5: Solve for x
    x = 18,861,117,243.67/150,961.75
  6. Step 6: Final answer
    x = 124,939.71

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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.