Home / 129,176.33-193,801.55-54,257.94

Finding the Fourth Proportional to 129,176.33, 193,801.55 and 54,257.94

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Solution

The fourth proportional to 129,176.33, 193,801.55 and 54,257.94 is: 81,402.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,176.33 : 193,801.55 = 54,257.94 : x
  2. Step 2: Convert to fraction form
    129,176.33/193,801.55 = 54,257.94/x
  3. Step 3: Cross multiply
    129,176.33x = 193,801.55 × 54,257.94
  4. Step 4: Simplify right side
    129,176.33x = 10,515,272,600.52
  5. Step 5: Solve for x
    x = 10,515,272,600.52/129,176.33
  6. Step 6: Final answer
    x = 81,402.48

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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.