Home / 166,739.10-230,099.94-91,287.60

Finding the Fourth Proportional to 166,739.10, 230,099.94 and 91,287.60

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Solution

The fourth proportional to 166,739.10, 230,099.94 and 91,287.60 is: 125,976.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,739.10 : 230,099.94 = 91,287.60 : x
  2. Step 2: Convert to fraction form
    166,739.10/230,099.94 = 91,287.60/x
  3. Step 3: Cross multiply
    166,739.10x = 230,099.94 × 91,287.60
  4. Step 4: Simplify right side
    166,739.10x = 21,005,271,282.74
  5. Step 5: Solve for x
    x = 21,005,271,282.74/166,739.10
  6. Step 6: Final answer
    x = 125,976.88

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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.