Home / 205,147.35-307,690.25-64,887.75

Finding the Fourth Proportional to 205,147.35, 307,690.25 and 64,887.75

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Solution

The fourth proportional to 205,147.35, 307,690.25 and 64,887.75 is: 97,321.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,147.35 : 307,690.25 = 64,887.75 : x
  2. Step 2: Convert to fraction form
    205,147.35/307,690.25 = 64,887.75/x
  3. Step 3: Cross multiply
    205,147.35x = 307,690.25 × 64,887.75
  4. Step 4: Simplify right side
    205,147.35x = 19,965,327,695.00
  5. Step 5: Solve for x
    x = 19,965,327,695.00/205,147.35
  6. Step 6: Final answer
    x = 97,321.89

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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.