Home / 221,104.22-305,134.64-124,338.53

Finding the Fourth Proportional to 221,104.22, 305,134.64 and 124,338.53

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Solution

The fourth proportional to 221,104.22, 305,134.64 and 124,338.53 is: 171,593.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,104.22 : 305,134.64 = 124,338.53 : x
  2. Step 2: Convert to fraction form
    221,104.22/305,134.64 = 124,338.53/x
  3. Step 3: Cross multiply
    221,104.22x = 305,134.64 × 124,338.53
  4. Step 4: Simplify right side
    221,104.22x = 37,939,991,374.85
  5. Step 5: Solve for x
    x = 37,939,991,374.85/221,104.22
  6. Step 6: Final answer
    x = 171,593.25

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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.