Home / 205,989.12-309,017.16-63,801.18

Finding the Fourth Proportional to 205,989.12, 309,017.16 and 63,801.18

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Solution

The fourth proportional to 205,989.12, 309,017.16 and 63,801.18 is: 95,712.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,989.12 : 309,017.16 = 63,801.18 : x
  2. Step 2: Convert to fraction form
    205,989.12/309,017.16 = 63,801.18/x
  3. Step 3: Cross multiply
    205,989.12x = 309,017.16 × 63,801.18
  4. Step 4: Simplify right side
    205,989.12x = 19,715,659,448.25
  5. Step 5: Solve for x
    x = 19,715,659,448.25/205,989.12
  6. Step 6: Final answer
    x = 95,712.14

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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.