Home / 161,940.33-223,308.09-139,355.91

Finding the Fourth Proportional to 161,940.33, 223,308.09 and 139,355.91

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Solution

The fourth proportional to 161,940.33, 223,308.09 and 139,355.91 is: 192,165.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,940.33 : 223,308.09 = 139,355.91 : x
  2. Step 2: Convert to fraction form
    161,940.33/223,308.09 = 139,355.91/x
  3. Step 3: Cross multiply
    161,940.33x = 223,308.09 × 139,355.91
  4. Step 4: Simplify right side
    161,940.33x = 31,119,302,092.31
  5. Step 5: Solve for x
    x = 31,119,302,092.31/161,940.33
  6. Step 6: Final answer
    x = 192,165.24

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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.