Home / 107,371.80-161,106.30-51,190.20

Finding the Fourth Proportional to 107,371.80, 161,106.30 and 51,190.20

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Solution

The fourth proportional to 107,371.80, 161,106.30 and 51,190.20 is: 76,808.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,371.80 : 161,106.30 = 51,190.20 : x
  2. Step 2: Convert to fraction form
    107,371.80/161,106.30 = 51,190.20/x
  3. Step 3: Cross multiply
    107,371.80x = 161,106.30 × 51,190.20
  4. Step 4: Simplify right side
    107,371.80x = 8,247,063,718.26
  5. Step 5: Solve for x
    x = 8,247,063,718.26/107,371.80
  6. Step 6: Final answer
    x = 76,808.47

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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.