Home / 161,930.72-223,453.76-89,329.28

Finding the Fourth Proportional to 161,930.72, 223,453.76 and 89,329.28

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Solution

The fourth proportional to 161,930.72, 223,453.76 and 89,329.28 is: 123,268.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,930.72 : 223,453.76 = 89,329.28 : x
  2. Step 2: Convert to fraction form
    161,930.72/223,453.76 = 89,329.28/x
  3. Step 3: Cross multiply
    161,930.72x = 223,453.76 × 89,329.28
  4. Step 4: Simplify right side
    161,930.72x = 19,960,963,494.09
  5. Step 5: Solve for x
    x = 19,960,963,494.09/161,930.72
  6. Step 6: Final answer
    x = 123,268.54

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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.