Home / 143,616.92-198,215.01-109,561.10

Finding the Fourth Proportional to 143,616.92, 198,215.01 and 109,561.10

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Solution

The fourth proportional to 143,616.92, 198,215.01 and 109,561.10 is: 151,212.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,616.92 : 198,215.01 = 109,561.10 : x
  2. Step 2: Convert to fraction form
    143,616.92/198,215.01 = 109,561.10/x
  3. Step 3: Cross multiply
    143,616.92x = 198,215.01 × 109,561.10
  4. Step 4: Simplify right side
    143,616.92x = 21,716,654,532.11
  5. Step 5: Solve for x
    x = 21,716,654,532.11/143,616.92
  6. Step 6: Final answer
    x = 151,212.37

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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.