Home / 125,629.11-173,297.99-77,197.39

Finding the Fourth Proportional to 125,629.11, 173,297.99 and 77,197.39

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Solution

The fourth proportional to 125,629.11, 173,297.99 and 77,197.39 is: 106,489.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,629.11 : 173,297.99 = 77,197.39 : x
  2. Step 2: Convert to fraction form
    125,629.11/173,297.99 = 77,197.39/x
  3. Step 3: Cross multiply
    125,629.11x = 173,297.99 × 77,197.39
  4. Step 4: Simplify right side
    125,629.11x = 13,378,152,279.99
  5. Step 5: Solve for x
    x = 13,378,152,279.99/125,629.11
  6. Step 6: Final answer
    x = 106,489.27

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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.