Home / 109,625.20-164,419.23-30,721.30

Finding the Fourth Proportional to 109,625.20, 164,419.23 and 30,721.30

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Solution

The fourth proportional to 109,625.20, 164,419.23 and 30,721.30 is: 46,076.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,625.20 : 164,419.23 = 30,721.30 : x
  2. Step 2: Convert to fraction form
    109,625.20/164,419.23 = 30,721.30/x
  3. Step 3: Cross multiply
    109,625.20x = 164,419.23 × 30,721.30
  4. Step 4: Simplify right side
    109,625.20x = 5,051,172,490.60
  5. Step 5: Solve for x
    x = 5,051,172,490.60/109,625.20
  6. Step 6: Final answer
    x = 46,076.75

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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.