Home / 126,289.74-189,306.43-107,855.38

Finding the Fourth Proportional to 126,289.74, 189,306.43 and 107,855.38

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Solution

The fourth proportional to 126,289.74, 189,306.43 and 107,855.38 is: 161,673.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,289.74 : 189,306.43 = 107,855.38 : x
  2. Step 2: Convert to fraction form
    126,289.74/189,306.43 = 107,855.38/x
  3. Step 3: Cross multiply
    126,289.74x = 189,306.43 × 107,855.38
  4. Step 4: Simplify right side
    126,289.74x = 20,417,716,911.09
  5. Step 5: Solve for x
    x = 20,417,716,911.09/126,289.74
  6. Step 6: Final answer
    x = 161,673.60

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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.