Home / 141,920.23-195,842.71-80,664.81

Finding the Fourth Proportional to 141,920.23, 195,842.71 and 80,664.81

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Solution

The fourth proportional to 141,920.23, 195,842.71 and 80,664.81 is: 111,313.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,920.23 : 195,842.71 = 80,664.81 : x
  2. Step 2: Convert to fraction form
    141,920.23/195,842.71 = 80,664.81/x
  3. Step 3: Cross multiply
    141,920.23x = 195,842.71 × 80,664.81
  4. Step 4: Simplify right side
    141,920.23x = 15,797,614,992.04
  5. Step 5: Solve for x
    x = 15,797,614,992.04/141,920.23
  6. Step 6: Final answer
    x = 111,313.34

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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.