Home / 221,104.80-305,184.24-125,615.52

Finding the Fourth Proportional to 221,104.80, 305,184.24 and 125,615.52

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Solution

The fourth proportional to 221,104.80, 305,184.24 and 125,615.52 is: 173,383.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,104.80 : 305,184.24 = 125,615.52 : x
  2. Step 2: Convert to fraction form
    221,104.80/305,184.24 = 125,615.52/x
  3. Step 3: Cross multiply
    221,104.80x = 305,184.24 × 125,615.52
  4. Step 4: Simplify right side
    221,104.80x = 38,335,877,003.40
  5. Step 5: Solve for x
    x = 38,335,877,003.40/221,104.80
  6. Step 6: Final answer
    x = 173,383.29

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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.