Home / 200,631.21-301,077.24-86,890.13

Finding the Fourth Proportional to 200,631.21, 301,077.24 and 86,890.13

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Solution

The fourth proportional to 200,631.21, 301,077.24 and 86,890.13 is: 130,391.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,631.21 : 301,077.24 = 86,890.13 : x
  2. Step 2: Convert to fraction form
    200,631.21/301,077.24 = 86,890.13/x
  3. Step 3: Cross multiply
    200,631.21x = 301,077.24 × 86,890.13
  4. Step 4: Simplify right side
    200,631.21x = 26,160,640,523.64
  5. Step 5: Solve for x
    x = 26,160,640,523.64/200,631.21
  6. Step 6: Final answer
    x = 130,391.68

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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.