Home / 112,991.12-169,508.32-56,843.36

Finding the Fourth Proportional to 112,991.12, 169,508.32 and 56,843.36

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Solution

The fourth proportional to 112,991.12, 169,508.32 and 56,843.36 is: 85,275.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,991.12 : 169,508.32 = 56,843.36 : x
  2. Step 2: Convert to fraction form
    112,991.12/169,508.32 = 56,843.36/x
  3. Step 3: Cross multiply
    112,991.12x = 169,508.32 × 56,843.36
  4. Step 4: Simplify right side
    112,991.12x = 9,635,422,456.76
  5. Step 5: Solve for x
    x = 9,635,422,456.76/112,991.12
  6. Step 6: Final answer
    x = 85,275.93

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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.