Home / 99,103.44-136,876.37-65,263.26

Finding the Fourth Proportional to 99,103.44, 136,876.37 and 65,263.26

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Solution

The fourth proportional to 99,103.44, 136,876.37 and 65,263.26 is: 90,138.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,103.44 : 136,876.37 = 65,263.26 : x
  2. Step 2: Convert to fraction form
    99,103.44/136,876.37 = 65,263.26/x
  3. Step 3: Cross multiply
    99,103.44x = 136,876.37 × 65,263.26
  4. Step 4: Simplify right side
    99,103.44x = 8,932,997,796.85
  5. Step 5: Solve for x
    x = 8,932,997,796.85/99,103.44
  6. Step 6: Final answer
    x = 90,138.12

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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.