Home / 205,173.60-307,789.20-64,917.60

Finding the Fourth Proportional to 205,173.60, 307,789.20 and 64,917.60

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Solution

The fourth proportional to 205,173.60, 307,789.20 and 64,917.60 is: 97,385.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,173.60 : 307,789.20 = 64,917.60 : x
  2. Step 2: Convert to fraction form
    205,173.60/307,789.20 = 64,917.60/x
  3. Step 3: Cross multiply
    205,173.60x = 307,789.20 × 64,917.60
  4. Step 4: Simplify right side
    205,173.60x = 19,980,936,169.92
  5. Step 5: Solve for x
    x = 19,980,936,169.92/205,173.60
  6. Step 6: Final answer
    x = 97,385.51

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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.