Home / 119,131.26-178,703.04-30,385.54

Finding the Fourth Proportional to 119,131.26, 178,703.04 and 30,385.54

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Solution

The fourth proportional to 119,131.26, 178,703.04 and 30,385.54 is: 45,579.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,131.26 : 178,703.04 = 30,385.54 : x
  2. Step 2: Convert to fraction form
    119,131.26/178,703.04 = 30,385.54/x
  3. Step 3: Cross multiply
    119,131.26x = 178,703.04 × 30,385.54
  4. Step 4: Simplify right side
    119,131.26x = 5,429,988,370.04
  5. Step 5: Solve for x
    x = 5,429,988,370.04/119,131.26
  6. Step 6: Final answer
    x = 45,579.88

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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.