Home / 220,395.12-304,138.88-124,910.64

Finding the Fourth Proportional to 220,395.12, 304,138.88 and 124,910.64

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Solution

The fourth proportional to 220,395.12, 304,138.88 and 124,910.64 is: 172,373.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,395.12 : 304,138.88 = 124,910.64 : x
  2. Step 2: Convert to fraction form
    220,395.12/304,138.88 = 124,910.64/x
  3. Step 3: Cross multiply
    220,395.12x = 304,138.88 × 124,910.64
  4. Step 4: Simplify right side
    220,395.12x = 37,990,182,149.68
  5. Step 5: Solve for x
    x = 37,990,182,149.68/220,395.12
  6. Step 6: Final answer
    x = 172,373.06

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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.