Home / 89,228.20-133,842.30-87,845.80

Finding the Fourth Proportional to 89,228.20, 133,842.30 and 87,845.80

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Solution

The fourth proportional to 89,228.20, 133,842.30 and 87,845.80 is: 131,768.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,228.20 : 133,842.30 = 87,845.80 : x
  2. Step 2: Convert to fraction form
    89,228.20/133,842.30 = 87,845.80/x
  3. Step 3: Cross multiply
    89,228.20x = 133,842.30 × 87,845.80
  4. Step 4: Simplify right side
    89,228.20x = 11,757,483,917.34
  5. Step 5: Solve for x
    x = 11,757,483,917.34/89,228.20
  6. Step 6: Final answer
    x = 131,768.70

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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.