Home / 144,285.88-199,115.50-80,626.36

Finding the Fourth Proportional to 144,285.88, 199,115.50 and 80,626.36

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Solution

The fourth proportional to 144,285.88, 199,115.50 and 80,626.36 is: 111,264.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,285.88 : 199,115.50 = 80,626.36 : x
  2. Step 2: Convert to fraction form
    144,285.88/199,115.50 = 80,626.36/x
  3. Step 3: Cross multiply
    144,285.88x = 199,115.50 × 80,626.36
  4. Step 4: Simplify right side
    144,285.88x = 16,053,957,984.58
  5. Step 5: Solve for x
    x = 16,053,957,984.58/144,285.88
  6. Step 6: Final answer
    x = 111,264.93

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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.