Home / 112,908.49-169,363.03-38,081.20

Finding the Fourth Proportional to 112,908.49, 169,363.03 and 38,081.20

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Solution

The fourth proportional to 112,908.49, 169,363.03 and 38,081.20 is: 57,121.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,908.49 : 169,363.03 = 38,081.20 : x
  2. Step 2: Convert to fraction form
    112,908.49/169,363.03 = 38,081.20/x
  3. Step 3: Cross multiply
    112,908.49x = 169,363.03 × 38,081.20
  4. Step 4: Simplify right side
    112,908.49x = 6,449,546,571.22
  5. Step 5: Solve for x
    x = 6,449,546,571.22/112,908.49
  6. Step 6: Final answer
    x = 57,121.89

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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.