Home / 143,578.77-198,130.94-79,035.44

Finding the Fourth Proportional to 143,578.77, 198,130.94 and 79,035.44

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Solution

The fourth proportional to 143,578.77, 198,130.94 and 79,035.44 is: 109,064.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,578.77 : 198,130.94 = 79,035.44 : x
  2. Step 2: Convert to fraction form
    143,578.77/198,130.94 = 79,035.44/x
  3. Step 3: Cross multiply
    143,578.77x = 198,130.94 × 79,035.44
  4. Step 4: Simplify right side
    143,578.77x = 15,659,366,020.51
  5. Step 5: Solve for x
    x = 15,659,366,020.51/143,578.77
  6. Step 6: Final answer
    x = 109,064.63

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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.