Home / 543,748.34-815,613.97-133,422.04

Finding the Fourth Proportional to 543,748.34, 815,613.97 and 133,422.04

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Solution

The fourth proportional to 543,748.34, 815,613.97 and 133,422.04 is: 200,130.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,748.34 : 815,613.97 = 133,422.04 : x
  2. Step 2: Convert to fraction form
    543,748.34/815,613.97 = 133,422.04/x
  3. Step 3: Cross multiply
    543,748.34x = 815,613.97 × 133,422.04
  4. Step 4: Simplify right side
    543,748.34x = 108,820,876,265.82
  5. Step 5: Solve for x
    x = 108,820,876,265.82/543,748.34
  6. Step 6: Final answer
    x = 200,130.96

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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.