Home / 158,839.89-219,173.07-90,845.92

Finding the Fourth Proportional to 158,839.89, 219,173.07 and 90,845.92

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Solution

The fourth proportional to 158,839.89, 219,173.07 and 90,845.92 is: 125,352.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,839.89 : 219,173.07 = 90,845.92 : x
  2. Step 2: Convert to fraction form
    158,839.89/219,173.07 = 90,845.92/x
  3. Step 3: Cross multiply
    158,839.89x = 219,173.07 × 90,845.92
  4. Step 4: Simplify right side
    158,839.89x = 19,910,979,183.37
  5. Step 5: Solve for x
    x = 19,910,979,183.37/158,839.89
  6. Step 6: Final answer
    x = 125,352.51

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1.5x scale

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.