Home / 126,425.37-189,665.75-47,539.60

Finding the Fourth Proportional to 126,425.37, 189,665.75 and 47,539.60

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Solution

The fourth proportional to 126,425.37, 189,665.75 and 47,539.60 is: 71,319.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,425.37 : 189,665.75 = 47,539.60 : x
  2. Step 2: Convert to fraction form
    126,425.37/189,665.75 = 47,539.60/x
  3. Step 3: Cross multiply
    126,425.37x = 189,665.75 × 47,539.60
  4. Step 4: Simplify right side
    126,425.37x = 9,016,633,533.38
  5. Step 5: Solve for x
    x = 9,016,633,533.38/126,425.37
  6. Step 6: Final answer
    x = 71,319.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.