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Finding the Fourth Proportional to 131,885.44, 182,064.78 and 75,285.88

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Solution

The fourth proportional to 131,885.44, 182,064.78 and 75,285.88 is: 103,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,885.44 : 182,064.78 = 75,285.88 : x
  2. Step 2: Convert to fraction form
    131,885.44/182,064.78 = 75,285.88/x
  3. Step 3: Cross multiply
    131,885.44x = 182,064.78 × 75,285.88
  4. Step 4: Simplify right side
    131,885.44x = 13,706,907,179.31
  5. Step 5: Solve for x
    x = 13,706,907,179.31/131,885.44
  6. Step 6: Final answer
    x = 103,930.40

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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.