Home / 117,741.56-162,435.38-66,743.48

Finding the Fourth Proportional to 117,741.56, 162,435.38 and 66,743.48

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Solution

The fourth proportional to 117,741.56, 162,435.38 and 66,743.48 is: 92,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,741.56 : 162,435.38 = 66,743.48 : x
  2. Step 2: Convert to fraction form
    117,741.56/162,435.38 = 66,743.48/x
  3. Step 3: Cross multiply
    117,741.56x = 162,435.38 × 66,743.48
  4. Step 4: Simplify right side
    117,741.56x = 10,841,501,390.43
  5. Step 5: Solve for x
    x = 10,841,501,390.43/117,741.56
  6. Step 6: Final answer
    x = 92,078.80

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1.5x scale

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.