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Finding the Fourth Proportional to 188,144.70, 282,216.84 and 81,441.24

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Solution

The fourth proportional to 188,144.70, 282,216.84 and 81,441.24 is: 122,161.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,144.70 : 282,216.84 = 81,441.24 : x
  2. Step 2: Convert to fraction form
    188,144.70/282,216.84 = 81,441.24/x
  3. Step 3: Cross multiply
    188,144.70x = 282,216.84 × 81,441.24
  4. Step 4: Simplify right side
    188,144.70x = 22,984,089,398.48
  5. Step 5: Solve for x
    x = 22,984,089,398.48/188,144.70
  6. Step 6: Final answer
    x = 122,161.77

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1.5x scale

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.