Home / 159,336.26-219,882.84-87,717.50

Finding the Fourth Proportional to 159,336.26, 219,882.84 and 87,717.50

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Solution

The fourth proportional to 159,336.26, 219,882.84 and 87,717.50 is: 121,049.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,336.26 : 219,882.84 = 87,717.50 : x
  2. Step 2: Convert to fraction form
    159,336.26/219,882.84 = 87,717.50/x
  3. Step 3: Cross multiply
    159,336.26x = 219,882.84 × 87,717.50
  4. Step 4: Simplify right side
    159,336.26x = 19,287,573,017.70
  5. Step 5: Solve for x
    x = 19,287,573,017.70/159,336.26
  6. Step 6: Final answer
    x = 121,049.49

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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.