Home / 445,041.36-667,625.67-137,319.48

Finding the Fourth Proportional to 445,041.36, 667,625.67 and 137,319.48

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Solution

The fourth proportional to 445,041.36, 667,625.67 and 137,319.48 is: 205,998.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,041.36 : 667,625.67 = 137,319.48 : x
  2. Step 2: Convert to fraction form
    445,041.36/667,625.67 = 137,319.48/x
  3. Step 3: Cross multiply
    445,041.36x = 667,625.67 × 137,319.48
  4. Step 4: Simplify right side
    445,041.36x = 91,678,009,839.05
  5. Step 5: Solve for x
    x = 91,678,009,839.05/445,041.36
  6. Step 6: Final answer
    x = 205,998.85

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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.