Home / 200,074.57-300,196.09-87,696.79

Finding the Fourth Proportional to 200,074.57, 300,196.09 and 87,696.79

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Solution

The fourth proportional to 200,074.57, 300,196.09 and 87,696.79 is: 131,582.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,074.57 : 300,196.09 = 87,696.79 : x
  2. Step 2: Convert to fraction form
    200,074.57/300,196.09 = 87,696.79/x
  3. Step 3: Cross multiply
    200,074.57x = 300,196.09 × 87,696.79
  4. Step 4: Simplify right side
    200,074.57x = 26,326,232,822.68
  5. Step 5: Solve for x
    x = 26,326,232,822.68/200,074.57
  6. Step 6: Final answer
    x = 131,582.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.