Home / 119,906.12-165,470.67-66,191.20

Finding the Fourth Proportional to 119,906.12, 165,470.67 and 66,191.20

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Solution

The fourth proportional to 119,906.12, 165,470.67 and 66,191.20 is: 91,343.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,906.12 : 165,470.67 = 66,191.20 : x
  2. Step 2: Convert to fraction form
    119,906.12/165,470.67 = 66,191.20/x
  3. Step 3: Cross multiply
    119,906.12x = 165,470.67 × 66,191.20
  4. Step 4: Simplify right side
    119,906.12x = 10,952,702,212.10
  5. Step 5: Solve for x
    x = 10,952,702,212.10/119,906.12
  6. Step 6: Final answer
    x = 91,343.98

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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.