Home / 143,864.07-198,527.86-79,336.03

Finding the Fourth Proportional to 143,864.07, 198,527.86 and 79,336.03

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Solution

The fourth proportional to 143,864.07, 198,527.86 and 79,336.03 is: 109,481.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,864.07 : 198,527.86 = 79,336.03 : x
  2. Step 2: Convert to fraction form
    143,864.07/198,527.86 = 79,336.03/x
  3. Step 3: Cross multiply
    143,864.07x = 198,527.86 × 79,336.03
  4. Step 4: Simplify right side
    143,864.07x = 15,750,412,256.80
  5. Step 5: Solve for x
    x = 15,750,412,256.80/143,864.07
  6. Step 6: Final answer
    x = 109,481.21

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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.