Home / 143,502.16-198,033.96-79,842.64

Finding the Fourth Proportional to 143,502.16, 198,033.96 and 79,842.64

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Solution

The fourth proportional to 143,502.16, 198,033.96 and 79,842.64 is: 110,183.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,502.16 : 198,033.96 = 79,842.64 : x
  2. Step 2: Convert to fraction form
    143,502.16/198,033.96 = 79,842.64/x
  3. Step 3: Cross multiply
    143,502.16x = 198,033.96 × 79,842.64
  4. Step 4: Simplify right side
    143,502.16x = 15,811,554,176.05
  5. Step 5: Solve for x
    x = 15,811,554,176.05/143,502.16
  6. Step 6: Final answer
    x = 110,183.39

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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.