Home / 143,953.12-198,655.32-80,290.96

Finding the Fourth Proportional to 143,953.12, 198,655.32 and 80,290.96

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Solution

The fourth proportional to 143,953.12, 198,655.32 and 80,290.96 is: 110,801.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,953.12 : 198,655.32 = 80,290.96 : x
  2. Step 2: Convert to fraction form
    143,953.12/198,655.32 = 80,290.96/x
  3. Step 3: Cross multiply
    143,953.12x = 198,655.32 × 80,290.96
  4. Step 4: Simplify right side
    143,953.12x = 15,950,226,351.91
  5. Step 5: Solve for x
    x = 15,950,226,351.91/143,953.12
  6. Step 6: Final answer
    x = 110,801.53

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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.