Home / 98,806.73-136,431.89-91,250.30

Finding the Fourth Proportional to 98,806.73, 136,431.89 and 91,250.30

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Solution

The fourth proportional to 98,806.73, 136,431.89 and 91,250.30 is: 125,997.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,806.73 : 136,431.89 = 91,250.30 : x
  2. Step 2: Convert to fraction form
    98,806.73/136,431.89 = 91,250.30/x
  3. Step 3: Cross multiply
    98,806.73x = 136,431.89 × 91,250.30
  4. Step 4: Simplify right side
    98,806.73x = 12,449,449,753.66
  5. Step 5: Solve for x
    x = 12,449,449,753.66/98,806.73
  6. Step 6: Final answer
    x = 125,997.99

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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.