Home / 128,471.01-192,711.78-34,976.76

Finding the Fourth Proportional to 128,471.01, 192,711.78 and 34,976.76

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Solution

The fourth proportional to 128,471.01, 192,711.78 and 34,976.76 is: 52,466.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,471.01 : 192,711.78 = 34,976.76 : x
  2. Step 2: Convert to fraction form
    128,471.01/192,711.78 = 34,976.76/x
  3. Step 3: Cross multiply
    128,471.01x = 192,711.78 × 34,976.76
  4. Step 4: Simplify right side
    128,471.01x = 6,740,433,678.23
  5. Step 5: Solve for x
    x = 6,740,433,678.23/128,471.01
  6. Step 6: Final answer
    x = 52,466.57

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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.