Home / 221,103.49-305,108.22-124,322.26

Finding the Fourth Proportional to 221,103.49, 305,108.22 and 124,322.26

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Solution

The fourth proportional to 221,103.49, 305,108.22 and 124,322.26 is: 171,556.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,103.49 : 305,108.22 = 124,322.26 : x
  2. Step 2: Convert to fraction form
    221,103.49/305,108.22 = 124,322.26/x
  3. Step 3: Cross multiply
    221,103.49x = 305,108.22 × 124,322.26
  4. Step 4: Simplify right side
    221,103.49x = 37,931,743,454.98
  5. Step 5: Solve for x
    x = 37,931,743,454.98/221,103.49
  6. Step 6: Final answer
    x = 171,556.51

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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.