Home / 129,783.52-194,591.58-50,905.72

Finding the Fourth Proportional to 129,783.52, 194,591.58 and 50,905.72

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Solution

The fourth proportional to 129,783.52, 194,591.58 and 50,905.72 is: 76,325.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,783.52 : 194,591.58 = 50,905.72 : x
  2. Step 2: Convert to fraction form
    129,783.52/194,591.58 = 50,905.72/x
  3. Step 3: Cross multiply
    129,783.52x = 194,591.58 × 50,905.72
  4. Step 4: Simplify right side
    129,783.52x = 9,905,824,485.84
  5. Step 5: Solve for x
    x = 9,905,824,485.84/129,783.52
  6. Step 6: Final answer
    x = 76,325.75

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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.