Home / 133,228.05-183,768.78-79,471.59

Finding the Fourth Proportional to 133,228.05, 183,768.78 and 79,471.59

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Solution

The fourth proportional to 133,228.05, 183,768.78 and 79,471.59 is: 109,619.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,228.05 : 183,768.78 = 79,471.59 : x
  2. Step 2: Convert to fraction form
    133,228.05/183,768.78 = 79,471.59/x
  3. Step 3: Cross multiply
    133,228.05x = 183,768.78 × 79,471.59
  4. Step 4: Simplify right side
    133,228.05x = 14,604,397,138.96
  5. Step 5: Solve for x
    x = 14,604,397,138.96/133,228.05
  6. Step 6: Final answer
    x = 109,619.54

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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.