Home / 135,422.51-203,057.79-92,776.11

Finding the Fourth Proportional to 135,422.51, 203,057.79 and 92,776.11

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Solution

The fourth proportional to 135,422.51, 203,057.79 and 92,776.11 is: 139,112.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,422.51 : 203,057.79 = 92,776.11 : x
  2. Step 2: Convert to fraction form
    135,422.51/203,057.79 = 92,776.11/x
  3. Step 3: Cross multiply
    135,422.51x = 203,057.79 × 92,776.11
  4. Step 4: Simplify right side
    135,422.51x = 18,838,911,323.12
  5. Step 5: Solve for x
    x = 18,838,911,323.12/135,422.51
  6. Step 6: Final answer
    x = 139,112.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.