Home / 412,039.09-618,154.49-127,714.56

Finding the Fourth Proportional to 412,039.09, 618,154.49 and 127,714.56

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Solution

The fourth proportional to 412,039.09, 618,154.49 and 127,714.56 is: 191,601.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,039.09 : 618,154.49 = 127,714.56 : x
  2. Step 2: Convert to fraction form
    412,039.09/618,154.49 = 127,714.56/x
  3. Step 3: Cross multiply
    412,039.09x = 618,154.49 × 127,714.56
  4. Step 4: Simplify right side
    412,039.09x = 78,947,328,702.37
  5. Step 5: Solve for x
    x = 78,947,328,702.37/412,039.09
  6. Step 6: Final answer
    x = 191,601.55

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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.