Home / 112,532.88-168,918.28-109,991.63

Finding the Fourth Proportional to 112,532.88, 168,918.28 and 109,991.63

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Solution

The fourth proportional to 112,532.88, 168,918.28 and 109,991.63 is: 165,103.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,532.88 : 168,918.28 = 109,991.63 : x
  2. Step 2: Convert to fraction form
    112,532.88/168,918.28 = 109,991.63/x
  3. Step 3: Cross multiply
    112,532.88x = 168,918.28 × 109,991.63
  4. Step 4: Simplify right side
    112,532.88x = 18,579,596,626.23
  5. Step 5: Solve for x
    x = 18,579,596,626.23/112,532.88
  6. Step 6: Final answer
    x = 165,103.72

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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.