Home / 98,806.23-136,431.20-91,249.79

Finding the Fourth Proportional to 98,806.23, 136,431.20 and 91,249.79

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Solution

The fourth proportional to 98,806.23, 136,431.20 and 91,249.79 is: 125,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,806.23 : 136,431.20 = 91,249.79 : x
  2. Step 2: Convert to fraction form
    98,806.23/136,431.20 = 91,249.79/x
  3. Step 3: Cross multiply
    98,806.23x = 136,431.20 × 91,249.79
  4. Step 4: Simplify right side
    98,806.23x = 12,449,318,234.28
  5. Step 5: Solve for x
    x = 12,449,318,234.28/98,806.23
  6. Step 6: Final answer
    x = 125,997.30

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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.