Home / 126,126.44-189,189.66-43,021.16

Finding the Fourth Proportional to 126,126.44, 189,189.66 and 43,021.16

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Solution

The fourth proportional to 126,126.44, 189,189.66 and 43,021.16 is: 64,531.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,126.44 : 189,189.66 = 43,021.16 : x
  2. Step 2: Convert to fraction form
    126,126.44/189,189.66 = 43,021.16/x
  3. Step 3: Cross multiply
    126,126.44x = 189,189.66 × 43,021.16
  4. Step 4: Simplify right side
    126,126.44x = 8,139,158,633.21
  5. Step 5: Solve for x
    x = 8,139,158,633.21/126,126.44
  6. Step 6: Final answer
    x = 64,531.74

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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.