Home / 124,321.20-186,480.41-74,415.22

Finding the Fourth Proportional to 124,321.20, 186,480.41 and 74,415.22

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Solution

The fourth proportional to 124,321.20, 186,480.41 and 74,415.22 is: 111,621.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,321.20 : 186,480.41 = 74,415.22 : x
  2. Step 2: Convert to fraction form
    124,321.20/186,480.41 = 74,415.22/x
  3. Step 3: Cross multiply
    124,321.20x = 186,480.41 × 74,415.22
  4. Step 4: Simplify right side
    124,321.20x = 13,876,979,897.56
  5. Step 5: Solve for x
    x = 13,876,979,897.56/124,321.20
  6. Step 6: Final answer
    x = 111,621.99

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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.