Home / 104,712.21-144,498.62-56,965.75

Finding the Fourth Proportional to 104,712.21, 144,498.62 and 56,965.75

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Solution

The fourth proportional to 104,712.21, 144,498.62 and 56,965.75 is: 78,610.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,712.21 : 144,498.62 = 56,965.75 : x
  2. Step 2: Convert to fraction form
    104,712.21/144,498.62 = 56,965.75/x
  3. Step 3: Cross multiply
    104,712.21x = 144,498.62 × 56,965.75
  4. Step 4: Simplify right side
    104,712.21x = 8,231,472,043.43
  5. Step 5: Solve for x
    x = 8,231,472,043.43/104,712.21
  6. Step 6: Final answer
    x = 78,610.43

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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.