Home / 109,721.80-164,588.10-57,233.80

Finding the Fourth Proportional to 109,721.80, 164,588.10 and 57,233.80

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Solution

The fourth proportional to 109,721.80, 164,588.10 and 57,233.80 is: 85,853.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,721.80 : 164,588.10 = 57,233.80 : x
  2. Step 2: Convert to fraction form
    109,721.80/164,588.10 = 57,233.80/x
  3. Step 3: Cross multiply
    109,721.80x = 164,588.10 × 57,233.80
  4. Step 4: Simplify right side
    109,721.80x = 9,420,002,397.78
  5. Step 5: Solve for x
    x = 9,420,002,397.78/109,721.80
  6. Step 6: Final answer
    x = 85,853.52

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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.