Home / 126,618.55-189,843.45-69,719.25

Finding the Fourth Proportional to 126,618.55, 189,843.45 and 69,719.25

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Solution

The fourth proportional to 126,618.55, 189,843.45 and 69,719.25 is: 104,532.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,618.55 : 189,843.45 = 69,719.25 : x
  2. Step 2: Convert to fraction form
    126,618.55/189,843.45 = 69,719.25/x
  3. Step 3: Cross multiply
    126,618.55x = 189,843.45 × 69,719.25
  4. Step 4: Simplify right side
    126,618.55x = 13,235,742,542.00
  5. Step 5: Solve for x
    x = 13,235,742,542.00/126,618.55
  6. Step 6: Final answer
    x = 104,532.41

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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.