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Finding the Fourth Proportional to 151,451.88, 209,004.44 and 87,827.44

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Solution

The fourth proportional to 151,451.88, 209,004.44 and 87,827.44 is: 121,202.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,451.88 : 209,004.44 = 87,827.44 : x
  2. Step 2: Convert to fraction form
    151,451.88/209,004.44 = 87,827.44/x
  3. Step 3: Cross multiply
    151,451.88x = 209,004.44 × 87,827.44
  4. Step 4: Simplify right side
    151,451.88x = 18,356,324,913.83
  5. Step 5: Solve for x
    x = 18,356,324,913.83/151,451.88
  6. Step 6: Final answer
    x = 121,202.36

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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.