Home / 158,850.06-219,214.60-87,231.58

Finding the Fourth Proportional to 158,850.06, 219,214.60 and 87,231.58

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Solution

The fourth proportional to 158,850.06, 219,214.60 and 87,231.58 is: 120,380.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,850.06 : 219,214.60 = 87,231.58 : x
  2. Step 2: Convert to fraction form
    158,850.06/219,214.60 = 87,231.58/x
  3. Step 3: Cross multiply
    158,850.06x = 219,214.60 × 87,231.58
  4. Step 4: Simplify right side
    158,850.06x = 19,122,435,917.07
  5. Step 5: Solve for x
    x = 19,122,435,917.07/158,850.06
  6. Step 6: Final answer
    x = 120,380.41

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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.