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Finding the Fourth Proportional to 119,814.11, 165,344.03 and 66,099.11

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Solution

The fourth proportional to 119,814.11, 165,344.03 and 66,099.11 is: 91,217.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,814.11 : 165,344.03 = 66,099.11 : x
  2. Step 2: Convert to fraction form
    119,814.11/165,344.03 = 66,099.11/x
  3. Step 3: Cross multiply
    119,814.11x = 165,344.03 × 66,099.11
  4. Step 4: Simplify right side
    119,814.11x = 10,929,094,084.37
  5. Step 5: Solve for x
    x = 10,929,094,084.37/119,814.11
  6. Step 6: Final answer
    x = 91,217.09

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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.