Home / 112,906.13-169,359.28-28,672.61

Finding the Fourth Proportional to 112,906.13, 169,359.28 and 28,672.61

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Solution

The fourth proportional to 112,906.13, 169,359.28 and 28,672.61 is: 43,008.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,906.13 : 169,359.28 = 28,672.61 : x
  2. Step 2: Convert to fraction form
    112,906.13/169,359.28 = 28,672.61/x
  3. Step 3: Cross multiply
    112,906.13x = 169,359.28 × 28,672.61
  4. Step 4: Simplify right side
    112,906.13x = 4,855,972,937.04
  5. Step 5: Solve for x
    x = 4,855,972,937.04/112,906.13
  6. Step 6: Final answer
    x = 43,008.94

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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.