Home / 205,464.36-308,193.21-79,132.32

Finding the Fourth Proportional to 205,464.36, 308,193.21 and 79,132.32

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Solution

The fourth proportional to 205,464.36, 308,193.21 and 79,132.32 is: 118,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,464.36 : 308,193.21 = 79,132.32 : x
  2. Step 2: Convert to fraction form
    205,464.36/308,193.21 = 79,132.32/x
  3. Step 3: Cross multiply
    205,464.36x = 308,193.21 × 79,132.32
  4. Step 4: Simplify right side
    205,464.36x = 24,388,043,715.55
  5. Step 5: Solve for x
    x = 24,388,043,715.55/205,464.36
  6. Step 6: Final answer
    x = 118,697.20

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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.