Home / 144,786.39-199,805.08-81,124.64

Finding the Fourth Proportional to 144,786.39, 199,805.08 and 81,124.64

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Solution

The fourth proportional to 144,786.39, 199,805.08 and 81,124.64 is: 111,951.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,786.39 : 199,805.08 = 81,124.64 : x
  2. Step 2: Convert to fraction form
    144,786.39/199,805.08 = 81,124.64/x
  3. Step 3: Cross multiply
    144,786.39x = 199,805.08 × 81,124.64
  4. Step 4: Simplify right side
    144,786.39x = 16,209,114,884.71
  5. Step 5: Solve for x
    x = 16,209,114,884.71/144,786.39
  6. Step 6: Final answer
    x = 111,951.93

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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.