Home / 107,819.40-161,786.70-48,664.20

Finding the Fourth Proportional to 107,819.40, 161,786.70 and 48,664.20

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Solution

The fourth proportional to 107,819.40, 161,786.70 and 48,664.20 is: 73,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,819.40 : 161,786.70 = 48,664.20 : x
  2. Step 2: Convert to fraction form
    107,819.40/161,786.70 = 48,664.20/x
  3. Step 3: Cross multiply
    107,819.40x = 161,786.70 × 48,664.20
  4. Step 4: Simplify right side
    107,819.40x = 7,873,220,326.14
  5. Step 5: Solve for x
    x = 7,873,220,326.14/107,819.40
  6. Step 6: Final answer
    x = 73,022.30

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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.