Home / 163,849.06-226,128.72-100,229.20

Finding the Fourth Proportional to 163,849.06, 226,128.72 and 100,229.20

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Solution

The fourth proportional to 163,849.06, 226,128.72 and 100,229.20 is: 138,326.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,849.06 : 226,128.72 = 100,229.20 : x
  2. Step 2: Convert to fraction form
    163,849.06/226,128.72 = 100,229.20/x
  3. Step 3: Cross multiply
    163,849.06x = 226,128.72 × 100,229.20
  4. Step 4: Simplify right side
    163,849.06x = 22,664,700,702.62
  5. Step 5: Solve for x
    x = 22,664,700,702.62/163,849.06
  6. Step 6: Final answer
    x = 138,326.71

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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.