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Finding the Fourth Proportional to 144,636.44, 199,616.11 and 87,308.69

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Solution

The fourth proportional to 144,636.44, 199,616.11 and 87,308.69 is: 120,496.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,636.44 : 199,616.11 = 87,308.69 : x
  2. Step 2: Convert to fraction form
    144,636.44/199,616.11 = 87,308.69/x
  3. Step 3: Cross multiply
    144,636.44x = 199,616.11 × 87,308.69
  4. Step 4: Simplify right side
    144,636.44x = 17,428,221,067.00
  5. Step 5: Solve for x
    x = 17,428,221,067.00/144,636.44
  6. Step 6: Final answer
    x = 120,496.75

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1.5x scale

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.