Home / 107,648.40-161,487.48-28,765.20

Finding the Fourth Proportional to 107,648.40, 161,487.48 and 28,765.20

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Solution

The fourth proportional to 107,648.40, 161,487.48 and 28,765.20 is: 43,151.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,648.40 : 161,487.48 = 28,765.20 : x
  2. Step 2: Convert to fraction form
    107,648.40/161,487.48 = 28,765.20/x
  3. Step 3: Cross multiply
    107,648.40x = 161,487.48 × 28,765.20
  4. Step 4: Simplify right side
    107,648.40x = 4,645,219,659.70
  5. Step 5: Solve for x
    x = 4,645,219,659.70/107,648.40
  6. Step 6: Final answer
    x = 43,151.78

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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.