Home / 213,425.56-320,186.94-73,175.68

Finding the Fourth Proportional to 213,425.56, 320,186.94 and 73,175.68

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Solution

The fourth proportional to 213,425.56, 320,186.94 and 73,175.68 is: 109,780.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,425.56 : 320,186.94 = 73,175.68 : x
  2. Step 2: Convert to fraction form
    213,425.56/320,186.94 = 73,175.68/x
  3. Step 3: Cross multiply
    213,425.56x = 320,186.94 × 73,175.68
  4. Step 4: Simplify right side
    213,425.56x = 23,429,897,061.62
  5. Step 5: Solve for x
    x = 23,429,897,061.62/213,425.56
  6. Step 6: Final answer
    x = 109,780.18

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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.