Home / 124,168-171,351.84-67,579.78

Finding the Fourth Proportional to 124,168, 171,351.84 and 67,579.78

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Solution

The fourth proportional to 124,168, 171,351.84 and 67,579.78 is: 93,260.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,168 : 171,351.84 = 67,579.78 : x
  2. Step 2: Convert to fraction form
    124,168/171,351.84 = 67,579.78/x
  3. Step 3: Cross multiply
    124,168x = 171,351.84 × 67,579.78
  4. Step 4: Simplify right side
    124,168x = 11,579,919,649.80
  5. Step 5: Solve for x
    x = 11,579,919,649.80/124,168
  6. Step 6: Final answer
    x = 93,260.10

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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.