Home / 143,529.48-198,078.46-79,868.66

Finding the Fourth Proportional to 143,529.48, 198,078.46 and 79,868.66

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Solution

The fourth proportional to 143,529.48, 198,078.46 and 79,868.66 is: 110,223.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,529.48 : 198,078.46 = 79,868.66 : x
  2. Step 2: Convert to fraction form
    143,529.48/198,078.46 = 79,868.66/x
  3. Step 3: Cross multiply
    143,529.48x = 198,078.46 × 79,868.66
  4. Step 4: Simplify right side
    143,529.48x = 15,820,261,175.06
  5. Step 5: Solve for x
    x = 15,820,261,175.06/143,529.48
  6. Step 6: Final answer
    x = 110,223.08

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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.