Home / 128,799.25-193,317.77-92,813.06

Finding the Fourth Proportional to 128,799.25, 193,317.77 and 92,813.06

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Solution

The fourth proportional to 128,799.25, 193,317.77 and 92,813.06 is: 139,305.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,799.25 : 193,317.77 = 92,813.06 : x
  2. Step 2: Convert to fraction form
    128,799.25/193,317.77 = 92,813.06/x
  3. Step 3: Cross multiply
    128,799.25x = 193,317.77 × 92,813.06
  4. Step 4: Simplify right side
    128,799.25x = 17,942,414,501.40
  5. Step 5: Solve for x
    x = 17,942,414,501.40/128,799.25
  6. Step 6: Final answer
    x = 139,305.27

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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.