Home / 112,906.38-169,359.65-28,672.86

Finding the Fourth Proportional to 112,906.38, 169,359.65 and 28,672.86

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Solution

The fourth proportional to 112,906.38, 169,359.65 and 28,672.86 is: 43,009.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,906.38 : 169,359.65 = 28,672.86 : x
  2. Step 2: Convert to fraction form
    112,906.38/169,359.65 = 28,672.86/x
  3. Step 3: Cross multiply
    112,906.38x = 169,359.65 × 28,672.86
  4. Step 4: Simplify right side
    112,906.38x = 4,856,025,534.10
  5. Step 5: Solve for x
    x = 4,856,025,534.10/112,906.38
  6. Step 6: Final answer
    x = 43,009.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.