Home / 122,039.25-183,338.91-86,587.98

Finding the Fourth Proportional to 122,039.25, 183,338.91 and 86,587.98

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Solution

The fourth proportional to 122,039.25, 183,338.91 and 86,587.98 is: 130,080.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,039.25 : 183,338.91 = 86,587.98 : x
  2. Step 2: Convert to fraction form
    122,039.25/183,338.91 = 86,587.98/x
  3. Step 3: Cross multiply
    122,039.25x = 183,338.91 × 86,587.98
  4. Step 4: Simplify right side
    122,039.25x = 15,874,945,872.30
  5. Step 5: Solve for x
    x = 15,874,945,872.30/122,039.25
  6. Step 6: Final answer
    x = 130,080.66

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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.