Home / 144,147.76-198,923.84-80,485.52

Finding the Fourth Proportional to 144,147.76, 198,923.84 and 80,485.52

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Solution

The fourth proportional to 144,147.76, 198,923.84 and 80,485.52 is: 111,069.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,147.76 : 198,923.84 = 80,485.52 : x
  2. Step 2: Convert to fraction form
    144,147.76/198,923.84 = 80,485.52/x
  3. Step 3: Cross multiply
    144,147.76x = 198,923.84 × 80,485.52
  4. Step 4: Simplify right side
    144,147.76x = 16,010,488,702.80
  5. Step 5: Solve for x
    x = 16,010,488,702.80/144,147.76
  6. Step 6: Final answer
    x = 111,069.98

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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.