Home / 129,915.60-194,873.40-51,003.60

Finding the Fourth Proportional to 129,915.60, 194,873.40 and 51,003.60

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Solution

The fourth proportional to 129,915.60, 194,873.40 and 51,003.60 is: 76,505.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,915.60 : 194,873.40 = 51,003.60 : x
  2. Step 2: Convert to fraction form
    129,915.60/194,873.40 = 51,003.60/x
  3. Step 3: Cross multiply
    129,915.60x = 194,873.40 × 51,003.60
  4. Step 4: Simplify right side
    129,915.60x = 9,939,244,944.24
  5. Step 5: Solve for x
    x = 9,939,244,944.24/129,915.60
  6. Step 6: Final answer
    x = 76,505.40

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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.