Home / 112,388.62-168,416.06-45,747.22

Finding the Fourth Proportional to 112,388.62, 168,416.06 and 45,747.22

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Solution

The fourth proportional to 112,388.62, 168,416.06 and 45,747.22 is: 68,552.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,388.62 : 168,416.06 = 45,747.22 : x
  2. Step 2: Convert to fraction form
    112,388.62/168,416.06 = 45,747.22/x
  3. Step 3: Cross multiply
    112,388.62x = 168,416.06 × 45,747.22
  4. Step 4: Simplify right side
    112,388.62x = 7,704,566,548.35
  5. Step 5: Solve for x
    x = 7,704,566,548.35/112,388.62
  6. Step 6: Final answer
    x = 68,552.91

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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.