Home / 205,917.33-309,075.72-99,376.26

Finding the Fourth Proportional to 205,917.33, 309,075.72 and 99,376.26

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Solution

The fourth proportional to 205,917.33, 309,075.72 and 99,376.26 is: 149,160.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,917.33 : 309,075.72 = 99,376.26 : x
  2. Step 2: Convert to fraction form
    205,917.33/309,075.72 = 99,376.26/x
  3. Step 3: Cross multiply
    205,917.33x = 309,075.72 × 99,376.26
  4. Step 4: Simplify right side
    205,917.33x = 30,714,789,110.41
  5. Step 5: Solve for x
    x = 30,714,789,110.41/205,917.33
  6. Step 6: Final answer
    x = 149,160.78

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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.