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Finding the Fourth Proportional to 170,138.07, 255,245.07 and 51,818.54

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Solution

The fourth proportional to 170,138.07, 255,245.07 and 51,818.54 is: 77,739.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,138.07 : 255,245.07 = 51,818.54 : x
  2. Step 2: Convert to fraction form
    170,138.07/255,245.07 = 51,818.54/x
  3. Step 3: Cross multiply
    170,138.07x = 255,245.07 × 51,818.54
  4. Step 4: Simplify right side
    170,138.07x = 13,226,425,787.69
  5. Step 5: Solve for x
    x = 13,226,425,787.69/170,138.07
  6. Step 6: Final answer
    x = 77,739.37

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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.