Home / 107,546.80-161,147.40-89,921.20

Finding the Fourth Proportional to 107,546.80, 161,147.40 and 89,921.20

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Solution

The fourth proportional to 107,546.80, 161,147.40 and 89,921.20 is: 134,737.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,546.80 : 161,147.40 = 89,921.20 : x
  2. Step 2: Convert to fraction form
    107,546.80/161,147.40 = 89,921.20/x
  3. Step 3: Cross multiply
    107,546.80x = 161,147.40 × 89,921.20
  4. Step 4: Simplify right side
    107,546.80x = 14,490,567,584.88
  5. Step 5: Solve for x
    x = 14,490,567,584.88/107,546.80
  6. Step 6: Final answer
    x = 134,737.32

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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.