Home / 445,101.31-667,708.56-141,387.12

Finding the Fourth Proportional to 445,101.31, 667,708.56 and 141,387.12

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Solution

The fourth proportional to 445,101.31, 667,708.56 and 141,387.12 is: 212,098.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,101.31 : 667,708.56 = 141,387.12 : x
  2. Step 2: Convert to fraction form
    445,101.31/667,708.56 = 141,387.12/x
  3. Step 3: Cross multiply
    445,101.31x = 667,708.56 × 141,387.12
  4. Step 4: Simplify right side
    445,101.31x = 94,405,390,297.75
  5. Step 5: Solve for x
    x = 94,405,390,297.75/445,101.31
  6. Step 6: Final answer
    x = 212,098.66

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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.