Home / 119,749.68-165,255.84-66,036.96

Finding the Fourth Proportional to 119,749.68, 165,255.84 and 66,036.96

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Solution

The fourth proportional to 119,749.68, 165,255.84 and 66,036.96 is: 91,131.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,749.68 : 165,255.84 = 66,036.96 : x
  2. Step 2: Convert to fraction form
    119,749.68/165,255.84 = 66,036.96/x
  3. Step 3: Cross multiply
    119,749.68x = 165,255.84 × 66,036.96
  4. Step 4: Simplify right side
    119,749.68x = 10,912,993,295.85
  5. Step 5: Solve for x
    x = 10,912,993,295.85/119,749.68
  6. Step 6: Final answer
    x = 91,131.71

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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.