Home / 105,887.13-158,836.91-29,979.33

Finding the Fourth Proportional to 105,887.13, 158,836.91 and 29,979.33

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Solution

The fourth proportional to 105,887.13, 158,836.91 and 29,979.33 is: 44,970.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,887.13 : 158,836.91 = 29,979.33 : x
  2. Step 2: Convert to fraction form
    105,887.13/158,836.91 = 29,979.33/x
  3. Step 3: Cross multiply
    105,887.13x = 158,836.91 × 29,979.33
  4. Step 4: Simplify right side
    105,887.13x = 4,761,823,991.17
  5. Step 5: Solve for x
    x = 4,761,823,991.17/105,887.13
  6. Step 6: Final answer
    x = 44,970.75

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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.