Home / 163,298.10-225,333.96-91,686

Finding the Fourth Proportional to 163,298.10, 225,333.96 and 91,686

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Solution

The fourth proportional to 163,298.10, 225,333.96 and 91,686 is: 126,516.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,298.10 : 225,333.96 = 91,686 : x
  2. Step 2: Convert to fraction form
    163,298.10/225,333.96 = 91,686/x
  3. Step 3: Cross multiply
    163,298.10x = 225,333.96 × 91,686
  4. Step 4: Simplify right side
    163,298.10x = 20,659,969,456.56
  5. Step 5: Solve for x
    x = 20,659,969,456.56/163,298.10
  6. Step 6: Final answer
    x = 126,516.90

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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.