Home / 129,912.40-194,868.60-59,928.40

Finding the Fourth Proportional to 129,912.40, 194,868.60 and 59,928.40

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Solution

The fourth proportional to 129,912.40, 194,868.60 and 59,928.40 is: 89,892.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,912.40 : 194,868.60 = 59,928.40 : x
  2. Step 2: Convert to fraction form
    129,912.40/194,868.60 = 59,928.40/x
  3. Step 3: Cross multiply
    129,912.40x = 194,868.60 × 59,928.40
  4. Step 4: Simplify right side
    129,912.40x = 11,678,163,408.24
  5. Step 5: Solve for x
    x = 11,678,163,408.24/129,912.40
  6. Step 6: Final answer
    x = 89,892.60

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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.