Home / 160,826.72-221,967.44-89,229.80

Finding the Fourth Proportional to 160,826.72, 221,967.44 and 89,229.80

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Solution

The fourth proportional to 160,826.72, 221,967.44 and 89,229.80 is: 123,151.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,826.72 : 221,967.44 = 89,229.80 : x
  2. Step 2: Convert to fraction form
    160,826.72/221,967.44 = 89,229.80/x
  3. Step 3: Cross multiply
    160,826.72x = 221,967.44 × 89,229.80
  4. Step 4: Simplify right side
    160,826.72x = 19,806,110,721.09
  5. Step 5: Solve for x
    x = 19,806,110,721.09/160,826.72
  6. Step 6: Final answer
    x = 123,151.87

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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.