Home / 126,933.55-175,187.58-81,013

Finding the Fourth Proportional to 126,933.55, 175,187.58 and 81,013

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Solution

The fourth proportional to 126,933.55, 175,187.58 and 81,013 is: 111,810.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,933.55 : 175,187.58 = 81,013 : x
  2. Step 2: Convert to fraction form
    126,933.55/175,187.58 = 81,013/x
  3. Step 3: Cross multiply
    126,933.55x = 175,187.58 × 81,013
  4. Step 4: Simplify right side
    126,933.55x = 14,192,471,418.54
  5. Step 5: Solve for x
    x = 14,192,471,418.54/126,933.55
  6. Step 6: Final answer
    x = 111,810.25

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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.