Home / 191,260.35-263,791-123,288.39

Finding the Fourth Proportional to 191,260.35, 263,791 and 123,288.39

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Solution

The fourth proportional to 191,260.35, 263,791 and 123,288.39 is: 170,042.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,260.35 : 263,791 = 123,288.39 : x
  2. Step 2: Convert to fraction form
    191,260.35/263,791 = 123,288.39/x
  3. Step 3: Cross multiply
    191,260.35x = 263,791 × 123,288.39
  4. Step 4: Simplify right side
    191,260.35x = 32,522,367,686.49
  5. Step 5: Solve for x
    x = 32,522,367,686.49/191,260.35
  6. Step 6: Final answer
    x = 170,042.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.