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Finding the Fourth Proportional to 119,814.75, 165,290.22 and 68,814.81

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Solution

The fourth proportional to 119,814.75, 165,290.22 and 68,814.81 is: 94,933.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,814.75 : 165,290.22 = 68,814.81 : x
  2. Step 2: Convert to fraction form
    119,814.75/165,290.22 = 68,814.81/x
  3. Step 3: Cross multiply
    119,814.75x = 165,290.22 × 68,814.81
  4. Step 4: Simplify right side
    119,814.75x = 11,374,415,084.16
  5. Step 5: Solve for x
    x = 11,374,415,084.16/119,814.75
  6. Step 6: Final answer
    x = 94,933.35

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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.