Home / 186,077.66-256,781.68-105,512.54

Finding the Fourth Proportional to 186,077.66, 256,781.68 and 105,512.54

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Solution

The fourth proportional to 186,077.66, 256,781.68 and 105,512.54 is: 145,604.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,077.66 : 256,781.68 = 105,512.54 : x
  2. Step 2: Convert to fraction form
    186,077.66/256,781.68 = 105,512.54/x
  3. Step 3: Cross multiply
    186,077.66x = 256,781.68 × 105,512.54
  4. Step 4: Simplify right side
    186,077.66x = 27,093,685,734.58
  5. Step 5: Solve for x
    x = 27,093,685,734.58/186,077.66
  6. Step 6: Final answer
    x = 145,604.19

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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.