Home / 143,914.05-198,601.59-79,381.85

Finding the Fourth Proportional to 143,914.05, 198,601.59 and 79,381.85

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Solution

The fourth proportional to 143,914.05, 198,601.59 and 79,381.85 is: 109,547.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,914.05 : 198,601.59 = 79,381.85 : x
  2. Step 2: Convert to fraction form
    143,914.05/198,601.59 = 79,381.85/x
  3. Step 3: Cross multiply
    143,914.05x = 198,601.59 × 79,381.85
  4. Step 4: Simplify right side
    143,914.05x = 15,765,360,634.13
  5. Step 5: Solve for x
    x = 15,765,360,634.13/143,914.05
  6. Step 6: Final answer
    x = 109,547.06

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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.