Home / 107,874.20-161,785.38-55,256.60

Finding the Fourth Proportional to 107,874.20, 161,785.38 and 55,256.60

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Solution

The fourth proportional to 107,874.20, 161,785.38 and 55,256.60 is: 82,871.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,874.20 : 161,785.38 = 55,256.60 : x
  2. Step 2: Convert to fraction form
    107,874.20/161,785.38 = 55,256.60/x
  3. Step 3: Cross multiply
    107,874.20x = 161,785.38 × 55,256.60
  4. Step 4: Simplify right side
    107,874.20x = 8,939,710,028.51
  5. Step 5: Solve for x
    x = 8,939,710,028.51/107,874.20
  6. Step 6: Final answer
    x = 82,871.62

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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.