Home / 122,981.85-169,778.93-82,906.29

Finding the Fourth Proportional to 122,981.85, 169,778.93 and 82,906.29

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Solution

The fourth proportional to 122,981.85, 169,778.93 and 82,906.29 is: 114,453.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,981.85 : 169,778.93 = 82,906.29 : x
  2. Step 2: Convert to fraction form
    122,981.85/169,778.93 = 82,906.29/x
  3. Step 3: Cross multiply
    122,981.85x = 169,778.93 × 82,906.29
  4. Step 4: Simplify right side
    122,981.85x = 14,075,740,791.94
  5. Step 5: Solve for x
    x = 14,075,740,791.94/122,981.85
  6. Step 6: Final answer
    x = 114,453.81

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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.