Home / 159,366.24-219,923.64-87,744.78

Finding the Fourth Proportional to 159,366.24, 219,923.64 and 87,744.78

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Solution

The fourth proportional to 159,366.24, 219,923.64 and 87,744.78 is: 121,086.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,366.24 : 219,923.64 = 87,744.78 : x
  2. Step 2: Convert to fraction form
    159,366.24/219,923.64 = 87,744.78/x
  3. Step 3: Cross multiply
    159,366.24x = 219,923.64 × 87,744.78
  4. Step 4: Simplify right side
    159,366.24x = 19,297,151,408.60
  5. Step 5: Solve for x
    x = 19,297,151,408.60/159,366.24
  6. Step 6: Final answer
    x = 121,086.82

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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.