Home / 117,250.20-161,853.66-83,761.56

Finding the Fourth Proportional to 117,250.20, 161,853.66 and 83,761.56

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Solution

The fourth proportional to 117,250.20, 161,853.66 and 83,761.56 is: 115,625.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,250.20 : 161,853.66 = 83,761.56 : x
  2. Step 2: Convert to fraction form
    117,250.20/161,853.66 = 83,761.56/x
  3. Step 3: Cross multiply
    117,250.20x = 161,853.66 × 83,761.56
  4. Step 4: Simplify right side
    117,250.20x = 13,557,115,053.31
  5. Step 5: Solve for x
    x = 13,557,115,053.31/117,250.20
  6. Step 6: Final answer
    x = 115,625.52

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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.