Home / 205,917.14-309,075.44-99,376.08

Finding the Fourth Proportional to 205,917.14, 309,075.44 and 99,376.08

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Solution

The fourth proportional to 205,917.14, 309,075.44 and 99,376.08 is: 149,160.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,917.14 : 309,075.44 = 99,376.08 : x
  2. Step 2: Convert to fraction form
    205,917.14/309,075.44 = 99,376.08/x
  3. Step 3: Cross multiply
    205,917.14x = 309,075.44 × 99,376.08
  4. Step 4: Simplify right side
    205,917.14x = 30,714,705,651.48
  5. Step 5: Solve for x
    x = 30,714,705,651.48/205,917.14
  6. Step 6: Final answer
    x = 149,160.51

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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.