Home / 117,255.12-175,738.20-66,696.54

Finding the Fourth Proportional to 117,255.12, 175,738.20 and 66,696.54

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Solution

The fourth proportional to 117,255.12, 175,738.20 and 66,696.54 is: 99,962.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,255.12 : 175,738.20 = 66,696.54 : x
  2. Step 2: Convert to fraction form
    117,255.12/175,738.20 = 66,696.54/x
  3. Step 3: Cross multiply
    117,255.12x = 175,738.20 × 66,696.54
  4. Step 4: Simplify right side
    117,255.12x = 11,721,129,885.83
  5. Step 5: Solve for x
    x = 11,721,129,885.83/117,255.12
  6. Step 6: Final answer
    x = 99,962.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.