Home / 119,834.55-165,372.57-66,121.56

Finding the Fourth Proportional to 119,834.55, 165,372.57 and 66,121.56

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Solution

The fourth proportional to 119,834.55, 165,372.57 and 66,121.56 is: 91,248.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,834.55 : 165,372.57 = 66,121.56 : x
  2. Step 2: Convert to fraction form
    119,834.55/165,372.57 = 66,121.56/x
  3. Step 3: Cross multiply
    119,834.55x = 165,372.57 × 66,121.56
  4. Step 4: Simplify right side
    119,834.55x = 10,934,692,309.61
  5. Step 5: Solve for x
    x = 10,934,692,309.61/119,834.55
  6. Step 6: Final answer
    x = 91,248.24

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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.