Home / 217,132.08-299,654.60-121,669.56

Finding the Fourth Proportional to 217,132.08, 299,654.60 and 121,669.56

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Solution

The fourth proportional to 217,132.08, 299,654.60 and 121,669.56 is: 167,910.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,132.08 : 299,654.60 = 121,669.56 : x
  2. Step 2: Convert to fraction form
    217,132.08/299,654.60 = 121,669.56/x
  3. Step 3: Cross multiply
    217,132.08x = 299,654.60 × 121,669.56
  4. Step 4: Simplify right side
    217,132.08x = 36,458,843,333.98
  5. Step 5: Solve for x
    x = 36,458,843,333.98/217,132.08
  6. Step 6: Final answer
    x = 167,910.90

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1.5x scale

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.