Home / 99,069.05-148,416.74-76,773.44

Finding the Fourth Proportional to 99,069.05, 148,416.74 and 76,773.44

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Solution

The fourth proportional to 99,069.05, 148,416.74 and 76,773.44 is: 115,015.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,069.05 : 148,416.74 = 76,773.44 : x
  2. Step 2: Convert to fraction form
    99,069.05/148,416.74 = 76,773.44/x
  3. Step 3: Cross multiply
    99,069.05x = 148,416.74 × 76,773.44
  4. Step 4: Simplify right side
    99,069.05x = 11,394,463,517.66
  5. Step 5: Solve for x
    x = 11,394,463,517.66/99,069.05
  6. Step 6: Final answer
    x = 115,015.37

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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.