Home / 143,863.07-198,526.48-79,335.03

Finding the Fourth Proportional to 143,863.07, 198,526.48 and 79,335.03

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Solution

The fourth proportional to 143,863.07, 198,526.48 and 79,335.03 is: 109,479.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,863.07 : 198,526.48 = 79,335.03 : x
  2. Step 2: Convert to fraction form
    143,863.07/198,526.48 = 79,335.03/x
  3. Step 3: Cross multiply
    143,863.07x = 198,526.48 × 79,335.03
  4. Step 4: Simplify right side
    143,863.07x = 15,750,103,253.96
  5. Step 5: Solve for x
    x = 15,750,103,253.96/143,863.07
  6. Step 6: Final answer
    x = 109,479.83

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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.