Home / 159,182.90-219,668.79-87,561.39

Finding the Fourth Proportional to 159,182.90, 219,668.79 and 87,561.39

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Solution

The fourth proportional to 159,182.90, 219,668.79 and 87,561.39 is: 120,832.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,182.90 : 219,668.79 = 87,561.39 : x
  2. Step 2: Convert to fraction form
    159,182.90/219,668.79 = 87,561.39/x
  3. Step 3: Cross multiply
    159,182.90x = 219,668.79 × 87,561.39
  4. Step 4: Simplify right side
    159,182.90x = 19,234,504,592.02
  5. Step 5: Solve for x
    x = 19,234,504,592.02/159,182.90
  6. Step 6: Final answer
    x = 120,832.73

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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.