Home / 126,229.56-189,400.26-67,051.08

Finding the Fourth Proportional to 126,229.56, 189,400.26 and 67,051.08

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Solution

The fourth proportional to 126,229.56, 189,400.26 and 67,051.08 is: 100,606.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,229.56 : 189,400.26 = 67,051.08 : x
  2. Step 2: Convert to fraction form
    126,229.56/189,400.26 = 67,051.08/x
  3. Step 3: Cross multiply
    126,229.56x = 189,400.26 × 67,051.08
  4. Step 4: Simplify right side
    126,229.56x = 12,699,491,985.28
  5. Step 5: Solve for x
    x = 12,699,491,985.28/126,229.56
  6. Step 6: Final answer
    x = 100,606.32

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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.