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Finding the Fourth Proportional to 192,704.40, 289,056.60 and 104,130.90

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Solution

The fourth proportional to 192,704.40, 289,056.60 and 104,130.90 is: 156,196.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,704.40 : 289,056.60 = 104,130.90 : x
  2. Step 2: Convert to fraction form
    192,704.40/289,056.60 = 104,130.90/x
  3. Step 3: Cross multiply
    192,704.40x = 289,056.60 × 104,130.90
  4. Step 4: Simplify right side
    192,704.40x = 30,099,723,908.94
  5. Step 5: Solve for x
    x = 30,099,723,908.94/192,704.40
  6. Step 6: Final answer
    x = 156,196.35

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1.5x scale

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.