Home / 122,512.62-183,721.41-47,622.86

Finding the Fourth Proportional to 122,512.62, 183,721.41 and 47,622.86

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Solution

The fourth proportional to 122,512.62, 183,721.41 and 47,622.86 is: 71,415.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,512.62 : 183,721.41 = 47,622.86 : x
  2. Step 2: Convert to fraction form
    122,512.62/183,721.41 = 47,622.86/x
  3. Step 3: Cross multiply
    122,512.62x = 183,721.41 × 47,622.86
  4. Step 4: Simplify right side
    122,512.62x = 8,749,338,068.83
  5. Step 5: Solve for x
    x = 8,749,338,068.83/122,512.62
  6. Step 6: Final answer
    x = 71,415.81

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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.