Home / 222,742.81-307,384.91-120,771.65

Finding the Fourth Proportional to 222,742.81, 307,384.91 and 120,771.65

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Solution

The fourth proportional to 222,742.81, 307,384.91 and 120,771.65 is: 166,664.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,742.81 : 307,384.91 = 120,771.65 : x
  2. Step 2: Convert to fraction form
    222,742.81/307,384.91 = 120,771.65/x
  3. Step 3: Cross multiply
    222,742.81x = 307,384.91 × 120,771.65
  4. Step 4: Simplify right side
    222,742.81x = 37,123,382,161.94
  5. Step 5: Solve for x
    x = 37,123,382,161.94/222,742.81
  6. Step 6: Final answer
    x = 166,664.79

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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.