Home / 200,131.09-300,300.11-87,890.20

Finding the Fourth Proportional to 200,131.09, 300,300.11 and 87,890.20

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Solution

The fourth proportional to 200,131.09, 300,300.11 and 87,890.20 is: 131,880.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,131.09 : 300,300.11 = 87,890.20 : x
  2. Step 2: Convert to fraction form
    200,131.09/300,300.11 = 87,890.20/x
  3. Step 3: Cross multiply
    200,131.09x = 300,300.11 × 87,890.20
  4. Step 4: Simplify right side
    200,131.09x = 26,393,436,727.92
  5. Step 5: Solve for x
    x = 26,393,436,727.92/200,131.09
  6. Step 6: Final answer
    x = 131,880.74

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1.5x scale

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.