Home / 143,527.66-198,063.28-79,864.09

Finding the Fourth Proportional to 143,527.66, 198,063.28 and 79,864.09

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Solution

The fourth proportional to 143,527.66, 198,063.28 and 79,864.09 is: 110,209.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,527.66 : 198,063.28 = 79,864.09 : x
  2. Step 2: Convert to fraction form
    143,527.66/198,063.28 = 79,864.09/x
  3. Step 3: Cross multiply
    143,527.66x = 198,063.28 × 79,864.09
  4. Step 4: Simplify right side
    143,527.66x = 15,818,143,619.62
  5. Step 5: Solve for x
    x = 15,818,143,619.62/143,527.66
  6. Step 6: Final answer
    x = 110,209.72

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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.