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Finding the Fourth Proportional to 119,936, 165,514.08 and 66,221.12

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Solution

The fourth proportional to 119,936, 165,514.08 and 66,221.12 is: 91,386.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,936 : 165,514.08 = 66,221.12 : x
  2. Step 2: Convert to fraction form
    119,936/165,514.08 = 66,221.12/x
  3. Step 3: Cross multiply
    119,936x = 165,514.08 × 66,221.12
  4. Step 4: Simplify right side
    119,936x = 10,960,527,753.37
  5. Step 5: Solve for x
    x = 10,960,527,753.37/119,936
  6. Step 6: Final answer
    x = 91,386.47

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.