Home / 143,614.92-198,212.25-109,559.10

Finding the Fourth Proportional to 143,614.92, 198,212.25 and 109,559.10

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Solution

The fourth proportional to 143,614.92, 198,212.25 and 109,559.10 is: 151,209.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,614.92 : 198,212.25 = 109,559.10 : x
  2. Step 2: Convert to fraction form
    143,614.92/198,212.25 = 109,559.10/x
  3. Step 3: Cross multiply
    143,614.92x = 198,212.25 × 109,559.10
  4. Step 4: Simplify right side
    143,614.92x = 21,715,955,718.98
  5. Step 5: Solve for x
    x = 21,715,955,718.98/143,614.92
  6. Step 6: Final answer
    x = 151,209.61

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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.