Home / 209,941.52-314,879.82-76,790.64

Finding the Fourth Proportional to 209,941.52, 314,879.82 and 76,790.64

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Solution

The fourth proportional to 209,941.52, 314,879.82 and 76,790.64 is: 115,174.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,941.52 : 314,879.82 = 76,790.64 : x
  2. Step 2: Convert to fraction form
    209,941.52/314,879.82 = 76,790.64/x
  3. Step 3: Cross multiply
    209,941.52x = 314,879.82 × 76,790.64
  4. Step 4: Simplify right side
    209,941.52x = 24,179,822,900.88
  5. Step 5: Solve for x
    x = 24,179,822,900.88/209,941.52
  6. Step 6: Final answer
    x = 115,174.09

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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.