Home / 119,834.05-165,371.88-66,121.06

Finding the Fourth Proportional to 119,834.05, 165,371.88 and 66,121.06

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Solution

The fourth proportional to 119,834.05, 165,371.88 and 66,121.06 is: 91,247.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,834.05 : 165,371.88 = 66,121.06 : x
  2. Step 2: Convert to fraction form
    119,834.05/165,371.88 = 66,121.06/x
  3. Step 3: Cross multiply
    119,834.05x = 165,371.88 × 66,121.06
  4. Step 4: Simplify right side
    119,834.05x = 10,934,563,999.79
  5. Step 5: Solve for x
    x = 10,934,563,999.79/119,834.05
  6. Step 6: Final answer
    x = 91,247.55

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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.