Home / 205,090.52-307,832.70-99,983.30

Finding the Fourth Proportional to 205,090.52, 307,832.70 and 99,983.30

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Solution

The fourth proportional to 205,090.52, 307,832.70 and 99,983.30 is: 150,070.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,090.52 : 307,832.70 = 99,983.30 : x
  2. Step 2: Convert to fraction form
    205,090.52/307,832.70 = 99,983.30/x
  3. Step 3: Cross multiply
    205,090.52x = 307,832.70 × 99,983.30
  4. Step 4: Simplify right side
    205,090.52x = 30,778,129,193.91
  5. Step 5: Solve for x
    x = 30,778,129,193.91/205,090.52
  6. Step 6: Final answer
    x = 150,070.95

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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.