Home / 124,630.08-171,872.64-82,114.56

Finding the Fourth Proportional to 124,630.08, 171,872.64 and 82,114.56

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Solution

The fourth proportional to 124,630.08, 171,872.64 and 82,114.56 is: 113,241.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,630.08 : 171,872.64 = 82,114.56 : x
  2. Step 2: Convert to fraction form
    124,630.08/171,872.64 = 82,114.56/x
  3. Step 3: Cross multiply
    124,630.08x = 171,872.64 × 82,114.56
  4. Step 4: Simplify right side
    124,630.08x = 14,113,246,209.64
  5. Step 5: Solve for x
    x = 14,113,246,209.64/124,630.08
  6. Step 6: Final answer
    x = 113,241.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.