Home / 143,525,137.20-198,083,616.12-81,633,523.20

Finding the Fourth Proportional to 143,525,137.20, 198,083,616.12 and 81,633,523.20

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Solution

The fourth proportional to 143,525,137.20, 198,083,616.12 and 81,633,523.20 is: 112,665,027.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,525,137.20 : 198,083,616.12 = 81,633,523.20 : x
  2. Step 2: Convert to fraction form
    143,525,137.20/198,083,616.12 = 81,633,523.20/x
  3. Step 3: Cross multiply
    143,525,137.20x = 198,083,616.12 × 81,633,523.20
  4. Step 4: Simplify right side
    143,525,137.20x = 16,170,263,472,071,914
  5. Step 5: Solve for x
    x = 16,170,263,472,071,914/143,525,137.20
  6. Step 6: Final answer
    x = 112,665,027.10

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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.