Home / 220,820.96-304,791.18-136,009.10

Finding the Fourth Proportional to 220,820.96, 304,791.18 and 136,009.10

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Solution

The fourth proportional to 220,820.96, 304,791.18 and 136,009.10 is: 187,728.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,820.96 : 304,791.18 = 136,009.10 : x
  2. Step 2: Convert to fraction form
    220,820.96/304,791.18 = 136,009.10/x
  3. Step 3: Cross multiply
    220,820.96x = 304,791.18 × 136,009.10
  4. Step 4: Simplify right side
    220,820.96x = 41,454,374,079.74
  5. Step 5: Solve for x
    x = 41,454,374,079.74/220,820.96
  6. Step 6: Final answer
    x = 187,728.44

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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.