Home / 204,931.76-307,397.35-55,172.21

Finding the Fourth Proportional to 204,931.76, 307,397.35 and 55,172.21

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Solution

The fourth proportional to 204,931.76, 307,397.35 and 55,172.21 is: 82,758.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,931.76 : 307,397.35 = 55,172.21 : x
  2. Step 2: Convert to fraction form
    204,931.76/307,397.35 = 55,172.21/x
  3. Step 3: Cross multiply
    204,931.76x = 307,397.35 × 55,172.21
  4. Step 4: Simplify right side
    204,931.76x = 16,959,791,147.64
  5. Step 5: Solve for x
    x = 16,959,791,147.64/204,931.76
  6. Step 6: Final answer
    x = 82,758.24

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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.