Home / 221,714.20-305,963.62-121,110.04

Finding the Fourth Proportional to 221,714.20, 305,963.62 and 121,110.04

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Solution

The fourth proportional to 221,714.20, 305,963.62 and 121,110.04 is: 167,130.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,714.20 : 305,963.62 = 121,110.04 : x
  2. Step 2: Convert to fraction form
    221,714.20/305,963.62 = 121,110.04/x
  3. Step 3: Cross multiply
    221,714.20x = 305,963.62 × 121,110.04
  4. Step 4: Simplify right side
    221,714.20x = 37,055,266,256.74
  5. Step 5: Solve for x
    x = 37,055,266,256.74/221,714.20
  6. Step 6: Final answer
    x = 167,130.78

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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.