Home / 126,622.86-189,849.91-69,723.57

Finding the Fourth Proportional to 126,622.86, 189,849.91 and 69,723.57

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Solution

The fourth proportional to 126,622.86, 189,849.91 and 69,723.57 is: 104,538.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,622.86 : 189,849.91 = 69,723.57 : x
  2. Step 2: Convert to fraction form
    126,622.86/189,849.91 = 69,723.57/x
  3. Step 3: Cross multiply
    126,622.86x = 189,849.91 × 69,723.57
  4. Step 4: Simplify right side
    126,622.86x = 13,237,013,489.38
  5. Step 5: Solve for x
    x = 13,237,013,489.38/126,622.86
  6. Step 6: Final answer
    x = 104,538.89

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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.