Home / 143,615.38-198,159.21-83,164.27

Finding the Fourth Proportional to 143,615.38, 198,159.21 and 83,164.27

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Solution

The fourth proportional to 143,615.38, 198,159.21 and 83,164.27 is: 114,749.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,615.38 : 198,159.21 = 83,164.27 : x
  2. Step 2: Convert to fraction form
    143,615.38/198,159.21 = 83,164.27/x
  3. Step 3: Cross multiply
    143,615.38x = 198,159.21 × 83,164.27
  4. Step 4: Simplify right side
    143,615.38x = 16,479,766,043.43
  5. Step 5: Solve for x
    x = 16,479,766,043.43/143,615.38
  6. Step 6: Final answer
    x = 114,749.31

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1.5x scale

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.