Home / 119,845.10-165,379.80-66,119.60

Finding the Fourth Proportional to 119,845.10, 165,379.80 and 66,119.60

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Solution

The fourth proportional to 119,845.10, 165,379.80 and 66,119.60 is: 91,241.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,845.10 : 165,379.80 = 66,119.60 : x
  2. Step 2: Convert to fraction form
    119,845.10/165,379.80 = 66,119.60/x
  3. Step 3: Cross multiply
    119,845.10x = 165,379.80 × 66,119.60
  4. Step 4: Simplify right side
    119,845.10x = 10,934,846,224.08
  5. Step 5: Solve for x
    x = 10,934,846,224.08/119,845.10
  6. Step 6: Final answer
    x = 91,241.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.