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Finding the Fourth Proportional to 201,785.94, 302,604.39 and 87,919.65

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Solution

The fourth proportional to 201,785.94, 302,604.39 and 87,919.65 is: 131,847.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,785.94 : 302,604.39 = 87,919.65 : x
  2. Step 2: Convert to fraction form
    201,785.94/302,604.39 = 87,919.65/x
  3. Step 3: Cross multiply
    201,785.94x = 302,604.39 × 87,919.65
  4. Step 4: Simplify right side
    201,785.94x = 26,604,872,057.26
  5. Step 5: Solve for x
    x = 26,604,872,057.26/201,785.94
  6. Step 6: Final answer
    x = 131,847.01

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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.