Home / 159,500.34-220,105.15-87,881.56

Finding the Fourth Proportional to 159,500.34, 220,105.15 and 87,881.56

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Solution

The fourth proportional to 159,500.34, 220,105.15 and 87,881.56 is: 121,273.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,500.34 : 220,105.15 = 87,881.56 : x
  2. Step 2: Convert to fraction form
    159,500.34/220,105.15 = 87,881.56/x
  3. Step 3: Cross multiply
    159,500.34x = 220,105.15 × 87,881.56
  4. Step 4: Simplify right side
    159,500.34x = 19,343,183,176.07
  5. Step 5: Solve for x
    x = 19,343,183,176.07/159,500.34
  6. Step 6: Final answer
    x = 121,273.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.