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Finding the Fourth Proportional to 144,395.76, 199,272.48 and 80,733.60

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Solution

The fourth proportional to 144,395.76, 199,272.48 and 80,733.60 is: 111,415.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,395.76 : 199,272.48 = 80,733.60 : x
  2. Step 2: Convert to fraction form
    144,395.76/199,272.48 = 80,733.60/x
  3. Step 3: Cross multiply
    144,395.76x = 199,272.48 × 80,733.60
  4. Step 4: Simplify right side
    144,395.76x = 16,087,984,691.33
  5. Step 5: Solve for x
    x = 16,087,984,691.33/144,395.76
  6. Step 6: Final answer
    x = 111,415.91

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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.