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Finding the Fourth Proportional to 89,722.68, 134,584.22 and 84,242.22

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Solution

The fourth proportional to 89,722.68, 134,584.22 and 84,242.22 is: 126,363.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,722.68 : 134,584.22 = 84,242.22 : x
  2. Step 2: Convert to fraction form
    89,722.68/134,584.22 = 84,242.22/x
  3. Step 3: Cross multiply
    89,722.68x = 134,584.22 × 84,242.22
  4. Step 4: Simplify right side
    89,722.68x = 11,337,673,469.77
  5. Step 5: Solve for x
    x = 11,337,673,469.77/89,722.68
  6. Step 6: Final answer
    x = 126,363.52

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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.