Home / 98,067.30-135,401.94-76,581.24

Finding the Fourth Proportional to 98,067.30, 135,401.94 and 76,581.24

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Solution

The fourth proportional to 98,067.30, 135,401.94 and 76,581.24 is: 105,736.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,067.30 : 135,401.94 = 76,581.24 : x
  2. Step 2: Convert to fraction form
    98,067.30/135,401.94 = 76,581.24/x
  3. Step 3: Cross multiply
    98,067.30x = 135,401.94 × 76,581.24
  4. Step 4: Simplify right side
    98,067.30x = 10,369,248,463.61
  5. Step 5: Solve for x
    x = 10,369,248,463.61/98,067.30
  6. Step 6: Final answer
    x = 105,736.05

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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.