Home / 117,231.78-161,778.57-63,513.59

Finding the Fourth Proportional to 117,231.78, 161,778.57 and 63,513.59

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Solution

The fourth proportional to 117,231.78, 161,778.57 and 63,513.59 is: 87,648.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,231.78 : 161,778.57 = 63,513.59 : x
  2. Step 2: Convert to fraction form
    117,231.78/161,778.57 = 63,513.59/x
  3. Step 3: Cross multiply
    117,231.78x = 161,778.57 × 63,513.59
  4. Step 4: Simplify right side
    117,231.78x = 10,275,137,765.77
  5. Step 5: Solve for x
    x = 10,275,137,765.77/117,231.78
  6. Step 6: Final answer
    x = 87,648.06

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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.