Home / 122,220.27-183,611.09-86,279.37

Finding the Fourth Proportional to 122,220.27, 183,611.09 and 86,279.37

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Solution

The fourth proportional to 122,220.27, 183,611.09 and 86,279.37 is: 129,617.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,220.27 : 183,611.09 = 86,279.37 : x
  2. Step 2: Convert to fraction form
    122,220.27/183,611.09 = 86,279.37/x
  3. Step 3: Cross multiply
    122,220.27x = 183,611.09 × 86,279.37
  4. Step 4: Simplify right side
    122,220.27x = 15,841,848,738.82
  5. Step 5: Solve for x
    x = 15,841,848,738.82/122,220.27
  6. Step 6: Final answer
    x = 129,617.20

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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.