Home / 126,334.26-189,165.81-76,346.73

Finding the Fourth Proportional to 126,334.26, 189,165.81 and 76,346.73

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Solution

The fourth proportional to 126,334.26, 189,165.81 and 76,346.73 is: 114,317.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,334.26 : 189,165.81 = 76,346.73 : x
  2. Step 2: Convert to fraction form
    126,334.26/189,165.81 = 76,346.73/x
  3. Step 3: Cross multiply
    126,334.26x = 189,165.81 × 76,346.73
  4. Step 4: Simplify right side
    126,334.26x = 14,442,191,021.30
  5. Step 5: Solve for x
    x = 14,442,191,021.30/126,334.26
  6. Step 6: Final answer
    x = 114,317.30

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1.5x scale

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.