Home / 190,070.73-285,105.86-87,477.75

Finding the Fourth Proportional to 190,070.73, 285,105.86 and 87,477.75

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Solution

The fourth proportional to 190,070.73, 285,105.86 and 87,477.75 is: 131,216.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,070.73 : 285,105.86 = 87,477.75 : x
  2. Step 2: Convert to fraction form
    190,070.73/285,105.86 = 87,477.75/x
  3. Step 3: Cross multiply
    190,070.73x = 285,105.86 × 87,477.75
  4. Step 4: Simplify right side
    190,070.73x = 24,940,419,144.62
  5. Step 5: Solve for x
    x = 24,940,419,144.62/190,070.73
  6. Step 6: Final answer
    x = 131,216.52

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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.