Home / 205,966.80-308,983.52-63,778.66

Finding the Fourth Proportional to 205,966.80, 308,983.52 and 63,778.66

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Solution

The fourth proportional to 205,966.80, 308,983.52 and 63,778.66 is: 95,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,966.80 : 308,983.52 = 63,778.66 : x
  2. Step 2: Convert to fraction form
    205,966.80/308,983.52 = 63,778.66/x
  3. Step 3: Cross multiply
    205,966.80x = 308,983.52 × 63,778.66
  4. Step 4: Simplify right side
    205,966.80x = 19,706,554,254.67
  5. Step 5: Solve for x
    x = 19,706,554,254.67/205,966.80
  6. Step 6: Final answer
    x = 95,678.30

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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.