Home / 122,164.20-168,578.82-71,853.48

Finding the Fourth Proportional to 122,164.20, 168,578.82 and 71,853.48

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Solution

The fourth proportional to 122,164.20, 168,578.82 and 71,853.48 is: 99,153.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,164.20 : 168,578.82 = 71,853.48 : x
  2. Step 2: Convert to fraction form
    122,164.20/168,578.82 = 71,853.48/x
  3. Step 3: Cross multiply
    122,164.20x = 168,578.82 × 71,853.48
  4. Step 4: Simplify right side
    122,164.20x = 12,112,974,871.29
  5. Step 5: Solve for x
    x = 12,112,974,871.29/122,164.20
  6. Step 6: Final answer
    x = 99,153.23

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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.