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Finding the Fourth Proportional to 169,511.40, 254,558.70 and 119,939.40

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Solution

The fourth proportional to 169,511.40, 254,558.70 and 119,939.40 is: 180,115.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,511.40 : 254,558.70 = 119,939.40 : x
  2. Step 2: Convert to fraction form
    169,511.40/254,558.70 = 119,939.40/x
  3. Step 3: Cross multiply
    169,511.40x = 254,558.70 × 119,939.40
  4. Step 4: Simplify right side
    169,511.40x = 30,531,617,742.78
  5. Step 5: Solve for x
    x = 30,531,617,742.78/169,511.40
  6. Step 6: Final answer
    x = 180,115.42

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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.