Home / 132,173.98-198,176.73-87,143.38

Finding the Fourth Proportional to 132,173.98, 198,176.73 and 87,143.38

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Solution

The fourth proportional to 132,173.98, 198,176.73 and 87,143.38 is: 130,659.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,173.98 : 198,176.73 = 87,143.38 : x
  2. Step 2: Convert to fraction form
    132,173.98/198,176.73 = 87,143.38/x
  3. Step 3: Cross multiply
    132,173.98x = 198,176.73 × 87,143.38
  4. Step 4: Simplify right side
    132,173.98x = 17,269,790,089.55
  5. Step 5: Solve for x
    x = 17,269,790,089.55/132,173.98
  6. Step 6: Final answer
    x = 130,659.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.