Home / 119,792.52-165,321-66,077.46

Finding the Fourth Proportional to 119,792.52, 165,321 and 66,077.46

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Solution

The fourth proportional to 119,792.52, 165,321 and 66,077.46 is: 91,190.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,792.52 : 165,321 = 66,077.46 : x
  2. Step 2: Convert to fraction form
    119,792.52/165,321 = 66,077.46/x
  3. Step 3: Cross multiply
    119,792.52x = 165,321 × 66,077.46
  4. Step 4: Simplify right side
    119,792.52x = 10,923,991,764.66
  5. Step 5: Solve for x
    x = 10,923,991,764.66/119,792.52
  6. Step 6: Final answer
    x = 91,190.93

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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.