Home / 153,172.22-211,375.77-86,104.22

Finding the Fourth Proportional to 153,172.22, 211,375.77 and 86,104.22

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Solution

The fourth proportional to 153,172.22, 211,375.77 and 86,104.22 is: 118,822.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,172.22 : 211,375.77 = 86,104.22 : x
  2. Step 2: Convert to fraction form
    153,172.22/211,375.77 = 86,104.22/x
  3. Step 3: Cross multiply
    153,172.22x = 211,375.77 × 86,104.22
  4. Step 4: Simplify right side
    153,172.22x = 18,200,344,745.87
  5. Step 5: Solve for x
    x = 18,200,344,745.87/153,172.22
  6. Step 6: Final answer
    x = 118,822.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.