Home / 89,406.26-133,917.41-84,172.04

Finding the Fourth Proportional to 89,406.26, 133,917.41 and 84,172.04

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Solution

The fourth proportional to 89,406.26, 133,917.41 and 84,172.04 is: 126,077.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,406.26 : 133,917.41 = 84,172.04 : x
  2. Step 2: Convert to fraction form
    89,406.26/133,917.41 = 84,172.04/x
  3. Step 3: Cross multiply
    89,406.26x = 133,917.41 × 84,172.04
  4. Step 4: Simplify right side
    89,406.26x = 11,272,100,500.77
  5. Step 5: Solve for x
    x = 11,272,100,500.77/89,406.26
  6. Step 6: Final answer
    x = 126,077.31

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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.