Home / 158,819.94-219,171.90-87,204.60

Finding the Fourth Proportional to 158,819.94, 219,171.90 and 87,204.60

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Solution

The fourth proportional to 158,819.94, 219,171.90 and 87,204.60 is: 120,342.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,819.94 : 219,171.90 = 87,204.60 : x
  2. Step 2: Convert to fraction form
    158,819.94/219,171.90 = 87,204.60/x
  3. Step 3: Cross multiply
    158,819.94x = 219,171.90 × 87,204.60
  4. Step 4: Simplify right side
    158,819.94x = 19,112,797,870.74
  5. Step 5: Solve for x
    x = 19,112,797,870.74/158,819.94
  6. Step 6: Final answer
    x = 120,342.56

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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.