Home / 112,906.91-169,338.75-56,731.46

Finding the Fourth Proportional to 112,906.91, 169,338.75 and 56,731.46

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Solution

The fourth proportional to 112,906.91, 169,338.75 and 56,731.46 is: 85,086.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,906.91 : 169,338.75 = 56,731.46 : x
  2. Step 2: Convert to fraction form
    112,906.91/169,338.75 = 56,731.46/x
  3. Step 3: Cross multiply
    112,906.91x = 169,338.75 × 56,731.46
  4. Step 4: Simplify right side
    112,906.91x = 9,606,834,522.08
  5. Step 5: Solve for x
    x = 9,606,834,522.08/112,906.91
  6. Step 6: Final answer
    x = 85,086.33

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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.