Home / 143,548.57-198,370.20-107,676.28

Finding the Fourth Proportional to 143,548.57, 198,370.20 and 107,676.28

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Solution

The fourth proportional to 143,548.57, 198,370.20 and 107,676.28 is: 148,798.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,548.57 : 198,370.20 = 107,676.28 : x
  2. Step 2: Convert to fraction form
    143,548.57/198,370.20 = 107,676.28/x
  3. Step 3: Cross multiply
    143,548.57x = 198,370.20 × 107,676.28
  4. Step 4: Simplify right side
    143,548.57x = 21,359,765,198.86
  5. Step 5: Solve for x
    x = 21,359,765,198.86/143,548.57
  6. Step 6: Final answer
    x = 148,798.17

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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.