Home / 213,103.40-294,120.78-127,067.92

Finding the Fourth Proportional to 213,103.40, 294,120.78 and 127,067.92

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Solution

The fourth proportional to 213,103.40, 294,120.78 and 127,067.92 is: 175,376.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,103.40 : 294,120.78 = 127,067.92 : x
  2. Step 2: Convert to fraction form
    213,103.40/294,120.78 = 127,067.92/x
  3. Step 3: Cross multiply
    213,103.40x = 294,120.78 × 127,067.92
  4. Step 4: Simplify right side
    213,103.40x = 37,373,314,531.57
  5. Step 5: Solve for x
    x = 37,373,314,531.57/213,103.40
  6. Step 6: Final answer
    x = 175,376.44

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1.5x scale

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.