Home / 134,315.97-185,293.89-80,507.61

Finding the Fourth Proportional to 134,315.97, 185,293.89 and 80,507.61

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Solution

The fourth proportional to 134,315.97, 185,293.89 and 80,507.61 is: 111,063.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,315.97 : 185,293.89 = 80,507.61 : x
  2. Step 2: Convert to fraction form
    134,315.97/185,293.89 = 80,507.61/x
  3. Step 3: Cross multiply
    134,315.97x = 185,293.89 × 80,507.61
  4. Step 4: Simplify right side
    134,315.97x = 14,917,568,231.50
  5. Step 5: Solve for x
    x = 14,917,568,231.50/134,315.97
  6. Step 6: Final answer
    x = 111,063.25

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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.