Home / 128,771.28-193,147.56-35,269.68

Finding the Fourth Proportional to 128,771.28, 193,147.56 and 35,269.68

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Solution

The fourth proportional to 128,771.28, 193,147.56 and 35,269.68 is: 52,901.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,771.28 : 193,147.56 = 35,269.68 : x
  2. Step 2: Convert to fraction form
    128,771.28/193,147.56 = 35,269.68/x
  3. Step 3: Cross multiply
    128,771.28x = 193,147.56 × 35,269.68
  4. Step 4: Simplify right side
    128,771.28x = 6,812,252,633.98
  5. Step 5: Solve for x
    x = 6,812,252,633.98/128,771.28
  6. Step 6: Final answer
    x = 52,901.96

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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.