Home / 223,144.72-307,940.08-121,170.40

Finding the Fourth Proportional to 223,144.72, 307,940.08 and 121,170.40

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Solution

The fourth proportional to 223,144.72, 307,940.08 and 121,170.40 is: 167,215.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,144.72 : 307,940.08 = 121,170.40 : x
  2. Step 2: Convert to fraction form
    223,144.72/307,940.08 = 121,170.40/x
  3. Step 3: Cross multiply
    223,144.72x = 307,940.08 × 121,170.40
  4. Step 4: Simplify right side
    223,144.72x = 37,313,222,669.63
  5. Step 5: Solve for x
    x = 37,313,222,669.63/223,144.72
  6. Step 6: Final answer
    x = 167,215.35

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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.