Home / 151,969.26-209,727.52-100,902.05

Finding the Fourth Proportional to 151,969.26, 209,727.52 and 100,902.05

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Solution

The fourth proportional to 151,969.26, 209,727.52 and 100,902.05 is: 139,251.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,969.26 : 209,727.52 = 100,902.05 : x
  2. Step 2: Convert to fraction form
    151,969.26/209,727.52 = 100,902.05/x
  3. Step 3: Cross multiply
    151,969.26x = 209,727.52 × 100,902.05
  4. Step 4: Simplify right side
    151,969.26x = 21,161,936,195.00
  5. Step 5: Solve for x
    x = 21,161,936,195.00/151,969.26
  6. Step 6: Final answer
    x = 139,251.42

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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.