Home / 126,567.78-189,904.04-55,453.64

Finding the Fourth Proportional to 126,567.78, 189,904.04 and 55,453.64

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Solution

The fourth proportional to 126,567.78, 189,904.04 and 55,453.64 is: 83,203.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,567.78 : 189,904.04 = 55,453.64 : x
  2. Step 2: Convert to fraction form
    126,567.78/189,904.04 = 55,453.64/x
  3. Step 3: Cross multiply
    126,567.78x = 189,904.04 × 55,453.64
  4. Step 4: Simplify right side
    126,567.78x = 10,530,870,268.71
  5. Step 5: Solve for x
    x = 10,530,870,268.71/126,567.78
  6. Step 6: Final answer
    x = 83,203.41

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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.