Home / 143,611.38-198,153.69-83,160.27

Finding the Fourth Proportional to 143,611.38, 198,153.69 and 83,160.27

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Solution

The fourth proportional to 143,611.38, 198,153.69 and 83,160.27 is: 114,743.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,611.38 : 198,153.69 = 83,160.27 : x
  2. Step 2: Convert to fraction form
    143,611.38/198,153.69 = 83,160.27/x
  3. Step 3: Cross multiply
    143,611.38x = 198,153.69 × 83,160.27
  4. Step 4: Simplify right side
    143,611.38x = 16,478,514,361.90
  5. Step 5: Solve for x
    x = 16,478,514,361.90/143,611.38
  6. Step 6: Final answer
    x = 114,743.79

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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.