Home / 158,786.03-219,123.79-86,190.37

Finding the Fourth Proportional to 158,786.03, 219,123.79 and 86,190.37

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Solution

The fourth proportional to 158,786.03, 219,123.79 and 86,190.37 is: 118,942.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,786.03 : 219,123.79 = 86,190.37 : x
  2. Step 2: Convert to fraction form
    158,786.03/219,123.79 = 86,190.37/x
  3. Step 3: Cross multiply
    158,786.03x = 219,123.79 × 86,190.37
  4. Step 4: Simplify right side
    158,786.03x = 18,886,359,772.62
  5. Step 5: Solve for x
    x = 18,886,359,772.62/158,786.03
  6. Step 6: Final answer
    x = 118,942.20

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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.