Home / 158,738.44-219,052.02-87,118.60

Finding the Fourth Proportional to 158,738.44, 219,052.02 and 87,118.60

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Solution

The fourth proportional to 158,738.44, 219,052.02 and 87,118.60 is: 120,219.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,738.44 : 219,052.02 = 87,118.60 : x
  2. Step 2: Convert to fraction form
    158,738.44/219,052.02 = 87,118.60/x
  3. Step 3: Cross multiply
    158,738.44x = 219,052.02 × 87,118.60
  4. Step 4: Simplify right side
    158,738.44x = 19,083,505,309.57
  5. Step 5: Solve for x
    x = 19,083,505,309.57/158,738.44
  6. Step 6: Final answer
    x = 120,219.81

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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.