Home / 119,736.68-165,233.44-66,020.78

Finding the Fourth Proportional to 119,736.68, 165,233.44 and 66,020.78

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Solution

The fourth proportional to 119,736.68, 165,233.44 and 66,020.78 is: 91,106.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,736.68 : 165,233.44 = 66,020.78 : x
  2. Step 2: Convert to fraction form
    119,736.68/165,233.44 = 66,020.78/x
  3. Step 3: Cross multiply
    119,736.68x = 165,233.44 × 66,020.78
  4. Step 4: Simplify right side
    119,736.68x = 10,908,840,590.88
  5. Step 5: Solve for x
    x = 10,908,840,590.88/119,736.68
  6. Step 6: Final answer
    x = 91,106.92

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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.