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Finding the Fourth Proportional to 125,164.31, 172,725.41 and 68,575.55

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Solution

The fourth proportional to 125,164.31, 172,725.41 and 68,575.55 is: 94,633.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,164.31 : 172,725.41 = 68,575.55 : x
  2. Step 2: Convert to fraction form
    125,164.31/172,725.41 = 68,575.55/x
  3. Step 3: Cross multiply
    125,164.31x = 172,725.41 × 68,575.55
  4. Step 4: Simplify right side
    125,164.31x = 11,844,739,297.54
  5. Step 5: Solve for x
    x = 11,844,739,297.54/125,164.31
  6. Step 6: Final answer
    x = 94,633.52

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1.5x scale

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.