Home / 143,423.05-198,004.88-109,162.48

Finding the Fourth Proportional to 143,423.05, 198,004.88 and 109,162.48

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Solution

The fourth proportional to 143,423.05, 198,004.88 and 109,162.48 is: 150,705.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,423.05 : 198,004.88 = 109,162.48 : x
  2. Step 2: Convert to fraction form
    143,423.05/198,004.88 = 109,162.48/x
  3. Step 3: Cross multiply
    143,423.05x = 198,004.88 × 109,162.48
  4. Step 4: Simplify right side
    143,423.05x = 21,614,703,530.80
  5. Step 5: Solve for x
    x = 21,614,703,530.80/143,423.05
  6. Step 6: Final answer
    x = 150,705.93

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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.