Home / 98,808.23-136,433.96-91,251.79

Finding the Fourth Proportional to 98,808.23, 136,433.96 and 91,251.79

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Solution

The fourth proportional to 98,808.23, 136,433.96 and 91,251.79 is: 126,000.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,808.23 : 136,433.96 = 91,251.79 : x
  2. Step 2: Convert to fraction form
    98,808.23/136,433.96 = 91,251.79/x
  3. Step 3: Cross multiply
    98,808.23x = 136,433.96 × 91,251.79
  4. Step 4: Simplify right side
    98,808.23x = 12,449,843,066.79
  5. Step 5: Solve for x
    x = 12,449,843,066.79/98,808.23
  6. Step 6: Final answer
    x = 126,000.06

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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.