Home / 105,819.13-146,027.11-58,071.25

Finding the Fourth Proportional to 105,819.13, 146,027.11 and 58,071.25

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Solution

The fourth proportional to 105,819.13, 146,027.11 and 58,071.25 is: 80,136.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,819.13 : 146,027.11 = 58,071.25 : x
  2. Step 2: Convert to fraction form
    105,819.13/146,027.11 = 58,071.25/x
  3. Step 3: Cross multiply
    105,819.13x = 146,027.11 × 58,071.25
  4. Step 4: Simplify right side
    105,819.13x = 8,479,976,009.92
  5. Step 5: Solve for x
    x = 8,479,976,009.92/105,819.13
  6. Step 6: Final answer
    x = 80,136.52

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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.