Home / 143,625.42-198,210.93-79,961.82

Finding the Fourth Proportional to 143,625.42, 198,210.93 and 79,961.82

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Solution

The fourth proportional to 143,625.42, 198,210.93 and 79,961.82 is: 110,351.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,625.42 : 198,210.93 = 79,961.82 : x
  2. Step 2: Convert to fraction form
    143,625.42/198,210.93 = 79,961.82/x
  3. Step 3: Cross multiply
    143,625.42x = 198,210.93 × 79,961.82
  4. Step 4: Simplify right side
    143,625.42x = 15,849,306,706.69
  5. Step 5: Solve for x
    x = 15,849,306,706.69/143,625.42
  6. Step 6: Final answer
    x = 110,351.68

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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.