Home / 133,297.12-183,944.44-78,884.56

Finding the Fourth Proportional to 133,297.12, 183,944.44 and 78,884.56

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Solution

The fourth proportional to 133,297.12, 183,944.44 and 78,884.56 is: 108,857.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,297.12 : 183,944.44 = 78,884.56 : x
  2. Step 2: Convert to fraction form
    133,297.12/183,944.44 = 78,884.56/x
  3. Step 3: Cross multiply
    133,297.12x = 183,944.44 × 78,884.56
  4. Step 4: Simplify right side
    133,297.12x = 14,510,376,213.85
  5. Step 5: Solve for x
    x = 14,510,376,213.85/133,297.12
  6. Step 6: Final answer
    x = 108,857.39

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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.