Home / 137,163.94-205,782.88-57,175.32

Finding the Fourth Proportional to 137,163.94, 205,782.88 and 57,175.32

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Solution

The fourth proportional to 137,163.94, 205,782.88 and 57,175.32 is: 85,778.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,163.94 : 205,782.88 = 57,175.32 : x
  2. Step 2: Convert to fraction form
    137,163.94/205,782.88 = 57,175.32/x
  3. Step 3: Cross multiply
    137,163.94x = 205,782.88 × 57,175.32
  4. Step 4: Simplify right side
    137,163.94x = 11,765,701,850.71
  5. Step 5: Solve for x
    x = 11,765,701,850.71/137,163.94
  6. Step 6: Final answer
    x = 85,778.39

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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.