Home / 159,091.41-219,544.18-87,470.81

Finding the Fourth Proportional to 159,091.41, 219,544.18 and 87,470.81

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Solution

The fourth proportional to 159,091.41, 219,544.18 and 87,470.81 is: 120,708.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,091.41 : 219,544.18 = 87,470.81 : x
  2. Step 2: Convert to fraction form
    159,091.41/219,544.18 = 87,470.81/x
  3. Step 3: Cross multiply
    159,091.41x = 219,544.18 × 87,470.81
  4. Step 4: Simplify right side
    159,091.41x = 19,203,705,938.99
  5. Step 5: Solve for x
    x = 19,203,705,938.99/159,091.41
  6. Step 6: Final answer
    x = 120,708.63

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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.