Home / 100,832.99-139,134.10-58,383.32

Finding the Fourth Proportional to 100,832.99, 139,134.10 and 58,383.32

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Solution

The fourth proportional to 100,832.99, 139,134.10 and 58,383.32 is: 80,560.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,832.99 : 139,134.10 = 58,383.32 : x
  2. Step 2: Convert to fraction form
    100,832.99/139,134.10 = 58,383.32/x
  3. Step 3: Cross multiply
    100,832.99x = 139,134.10 × 58,383.32
  4. Step 4: Simplify right side
    100,832.99x = 8,123,109,695.62
  5. Step 5: Solve for x
    x = 8,123,109,695.62/100,832.99
  6. Step 6: Final answer
    x = 80,560.04

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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.