Home / 129,845.40-194,768.10-115,848.60

Finding the Fourth Proportional to 129,845.40, 194,768.10 and 115,848.60

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Solution

The fourth proportional to 129,845.40, 194,768.10 and 115,848.60 is: 173,772.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,845.40 : 194,768.10 = 115,848.60 : x
  2. Step 2: Convert to fraction form
    129,845.40/194,768.10 = 115,848.60/x
  3. Step 3: Cross multiply
    129,845.40x = 194,768.10 × 115,848.60
  4. Step 4: Simplify right side
    129,845.40x = 22,563,611,709.66
  5. Step 5: Solve for x
    x = 22,563,611,709.66/129,845.40
  6. Step 6: Final answer
    x = 173,772.90

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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.