Home / 131,266.56-196,604.28-91,999.02

Finding the Fourth Proportional to 131,266.56, 196,604.28 and 91,999.02

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Solution

The fourth proportional to 131,266.56, 196,604.28 and 91,999.02 is: 137,791.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,266.56 : 196,604.28 = 91,999.02 : x
  2. Step 2: Convert to fraction form
    131,266.56/196,604.28 = 91,999.02/x
  3. Step 3: Cross multiply
    131,266.56x = 196,604.28 × 91,999.02
  4. Step 4: Simplify right side
    131,266.56x = 18,087,401,087.81
  5. Step 5: Solve for x
    x = 18,087,401,087.81/131,266.56
  6. Step 6: Final answer
    x = 137,791.38

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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.