Home / 143,829.81-198,461.43-83,375.69

Finding the Fourth Proportional to 143,829.81, 198,461.43 and 83,375.69

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Solution

The fourth proportional to 143,829.81, 198,461.43 and 83,375.69 is: 115,044.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,829.81 : 198,461.43 = 83,375.69 : x
  2. Step 2: Convert to fraction form
    143,829.81/198,461.43 = 83,375.69/x
  3. Step 3: Cross multiply
    143,829.81x = 198,461.43 × 83,375.69
  4. Step 4: Simplify right side
    143,829.81x = 16,546,857,672.33
  5. Step 5: Solve for x
    x = 16,546,857,672.33/143,829.81
  6. Step 6: Final answer
    x = 115,044.70

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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.