Home / 88,704.12-133,161.48-69,997.56

Finding the Fourth Proportional to 88,704.12, 133,161.48 and 69,997.56

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Solution

The fourth proportional to 88,704.12, 133,161.48 and 69,997.56 is: 105,079.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,704.12 : 133,161.48 = 69,997.56 : x
  2. Step 2: Convert to fraction form
    88,704.12/133,161.48 = 69,997.56/x
  3. Step 3: Cross multiply
    88,704.12x = 133,161.48 × 69,997.56
  4. Step 4: Simplify right side
    88,704.12x = 9,320,978,685.99
  5. Step 5: Solve for x
    x = 9,320,978,685.99/88,704.12
  6. Step 6: Final answer
    x = 105,079.43

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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.