Home / 105,419.91-158,192.25-38,906.37

Finding the Fourth Proportional to 105,419.91, 158,192.25 and 38,906.37

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Solution

The fourth proportional to 105,419.91, 158,192.25 and 38,906.37 is: 58,382.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,419.91 : 158,192.25 = 38,906.37 : x
  2. Step 2: Convert to fraction form
    105,419.91/158,192.25 = 38,906.37/x
  3. Step 3: Cross multiply
    105,419.91x = 158,192.25 × 38,906.37
  4. Step 4: Simplify right side
    105,419.91x = 6,154,686,209.63
  5. Step 5: Solve for x
    x = 6,154,686,209.63/105,419.91
  6. Step 6: Final answer
    x = 58,382.58

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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.