Home / 159,087.30-219,540.50-87,472.14

Finding the Fourth Proportional to 159,087.30, 219,540.50 and 87,472.14

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Solution

The fourth proportional to 159,087.30, 219,540.50 and 87,472.14 is: 120,711.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,087.30 : 219,540.50 = 87,472.14 : x
  2. Step 2: Convert to fraction form
    159,087.30/219,540.50 = 87,472.14/x
  3. Step 3: Cross multiply
    159,087.30x = 219,540.50 × 87,472.14
  4. Step 4: Simplify right side
    159,087.30x = 19,203,677,351.67
  5. Step 5: Solve for x
    x = 19,203,677,351.67/159,087.30
  6. Step 6: Final answer
    x = 120,711.57

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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.