Home / 107,819.20-161,707.20-51,659.20

Finding the Fourth Proportional to 107,819.20, 161,707.20 and 51,659.20

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Solution

The fourth proportional to 107,819.20, 161,707.20 and 51,659.20 is: 77,478.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,819.20 : 161,707.20 = 51,659.20 : x
  2. Step 2: Convert to fraction form
    107,819.20/161,707.20 = 51,659.20/x
  3. Step 3: Cross multiply
    107,819.20x = 161,707.20 × 51,659.20
  4. Step 4: Simplify right side
    107,819.20x = 8,353,664,586.24
  5. Step 5: Solve for x
    x = 8,353,664,586.24/107,819.20
  6. Step 6: Final answer
    x = 77,478.45

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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.