Home / 112,600.26-168,900.66-91,439.82

Finding the Fourth Proportional to 112,600.26, 168,900.66 and 91,439.82

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Solution

The fourth proportional to 112,600.26, 168,900.66 and 91,439.82 is: 137,159.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,600.26 : 168,900.66 = 91,439.82 : x
  2. Step 2: Convert to fraction form
    112,600.26/168,900.66 = 91,439.82/x
  3. Step 3: Cross multiply
    112,600.26x = 168,900.66 × 91,439.82
  4. Step 4: Simplify right side
    112,600.26x = 15,444,245,948.28
  5. Step 5: Solve for x
    x = 15,444,245,948.28/112,600.26
  6. Step 6: Final answer
    x = 137,159.95

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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.