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Finding the Fourth Proportional to 144,867, 199,917.18 and 84,479.52

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Solution

The fourth proportional to 144,867, 199,917.18 and 84,479.52 is: 116,582.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,867 : 199,917.18 = 84,479.52 : x
  2. Step 2: Convert to fraction form
    144,867/199,917.18 = 84,479.52/x
  3. Step 3: Cross multiply
    144,867x = 199,917.18 × 84,479.52
  4. Step 4: Simplify right side
    144,867x = 16,888,907,406.15
  5. Step 5: Solve for x
    x = 16,888,907,406.15/144,867
  6. Step 6: Final answer
    x = 116,582.16

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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.