Home / 205,513.10-308,586.45-112,201.10

Finding the Fourth Proportional to 205,513.10, 308,586.45 and 112,201.10

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Solution

The fourth proportional to 205,513.10, 308,586.45 and 112,201.10 is: 168,474.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,513.10 : 308,586.45 = 112,201.10 : x
  2. Step 2: Convert to fraction form
    205,513.10/308,586.45 = 112,201.10/x
  3. Step 3: Cross multiply
    205,513.10x = 308,586.45 × 112,201.10
  4. Step 4: Simplify right side
    205,513.10x = 34,623,739,135.10
  5. Step 5: Solve for x
    x = 34,623,739,135.10/205,513.10
  6. Step 6: Final answer
    x = 168,474.61

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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.