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Finding the Fourth Proportional to 151,449.94, 209,001.09 and 87,824.71

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Solution

The fourth proportional to 151,449.94, 209,001.09 and 87,824.71 is: 121,198.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,449.94 : 209,001.09 = 87,824.71 : x
  2. Step 2: Convert to fraction form
    151,449.94/209,001.09 = 87,824.71/x
  3. Step 3: Cross multiply
    151,449.94x = 209,001.09 × 87,824.71
  4. Step 4: Simplify right side
    151,449.94x = 18,355,460,118.93
  5. Step 5: Solve for x
    x = 18,355,460,118.93/151,449.94
  6. Step 6: Final answer
    x = 121,198.20

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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.