Home / 205,525.20-308,100.97-79,084.78

Finding the Fourth Proportional to 205,525.20, 308,100.97 and 79,084.78

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Solution

The fourth proportional to 205,525.20, 308,100.97 and 79,084.78 is: 118,555.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,525.20 : 308,100.97 = 79,084.78 : x
  2. Step 2: Convert to fraction form
    205,525.20/308,100.97 = 79,084.78/x
  3. Step 3: Cross multiply
    205,525.20x = 308,100.97 × 79,084.78
  4. Step 4: Simplify right side
    205,525.20x = 24,366,097,430.24
  5. Step 5: Solve for x
    x = 24,366,097,430.24/205,525.20
  6. Step 6: Final answer
    x = 118,555.28

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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.