Home / 117,020.96-161,488.44-63,305.85

Finding the Fourth Proportional to 117,020.96, 161,488.44 and 63,305.85

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Solution

The fourth proportional to 117,020.96, 161,488.44 and 63,305.85 is: 87,361.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,020.96 : 161,488.44 = 63,305.85 : x
  2. Step 2: Convert to fraction form
    117,020.96/161,488.44 = 63,305.85/x
  3. Step 3: Cross multiply
    117,020.96x = 161,488.44 × 63,305.85
  4. Step 4: Simplify right side
    117,020.96x = 10,223,162,959.37
  5. Step 5: Solve for x
    x = 10,223,162,959.37/117,020.96
  6. Step 6: Final answer
    x = 87,361.81

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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.