Home / 213,843.06-320,125.50-129,347.52

Finding the Fourth Proportional to 213,843.06, 320,125.50 and 129,347.52

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Solution

The fourth proportional to 213,843.06, 320,125.50 and 129,347.52 is: 193,634.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,843.06 : 320,125.50 = 129,347.52 : x
  2. Step 2: Convert to fraction form
    213,843.06/320,125.50 = 129,347.52/x
  3. Step 3: Cross multiply
    213,843.06x = 320,125.50 × 129,347.52
  4. Step 4: Simplify right side
    213,843.06x = 41,407,439,513.76
  5. Step 5: Solve for x
    x = 41,407,439,513.76/213,843.06
  6. Step 6: Final answer
    x = 193,634.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.