Home / 126,549.54-189,636.93-55,406.43

Finding the Fourth Proportional to 126,549.54, 189,636.93 and 55,406.43

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Solution

The fourth proportional to 126,549.54, 189,636.93 and 55,406.43 is: 83,027.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,549.54 : 189,636.93 = 55,406.43 : x
  2. Step 2: Convert to fraction form
    126,549.54/189,636.93 = 55,406.43/x
  3. Step 3: Cross multiply
    126,549.54x = 189,636.93 × 55,406.43
  4. Step 4: Simplify right side
    126,549.54x = 10,507,105,287.46
  5. Step 5: Solve for x
    x = 10,507,105,287.46/126,549.54
  6. Step 6: Final answer
    x = 83,027.61

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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.