Home / 127,650.12-176,042.44-79,907.80

Finding the Fourth Proportional to 127,650.12, 176,042.44 and 79,907.80

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Solution

The fourth proportional to 127,650.12, 176,042.44 and 79,907.80 is: 110,200.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,650.12 : 176,042.44 = 79,907.80 : x
  2. Step 2: Convert to fraction form
    127,650.12/176,042.44 = 79,907.80/x
  3. Step 3: Cross multiply
    127,650.12x = 176,042.44 × 79,907.80
  4. Step 4: Simplify right side
    127,650.12x = 14,067,164,087.03
  5. Step 5: Solve for x
    x = 14,067,164,087.03/127,650.12
  6. Step 6: Final answer
    x = 110,200.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.