Home / 143,914.41-198,602.69-79,385.92

Finding the Fourth Proportional to 143,914.41, 198,602.69 and 79,385.92

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Solution

The fourth proportional to 143,914.41, 198,602.69 and 79,385.92 is: 109,553.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,914.41 : 198,602.69 = 79,385.92 : x
  2. Step 2: Convert to fraction form
    143,914.41/198,602.69 = 79,385.92/x
  3. Step 3: Cross multiply
    143,914.41x = 198,602.69 × 79,385.92
  4. Step 4: Simplify right side
    143,914.41x = 15,766,256,366.69
  5. Step 5: Solve for x
    x = 15,766,256,366.69/143,914.41
  6. Step 6: Final answer
    x = 109,553.01

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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.