Home / 121,416.17-167,660.07-76,171.94

Finding the Fourth Proportional to 121,416.17, 167,660.07 and 76,171.94

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Solution

The fourth proportional to 121,416.17, 167,660.07 and 76,171.94 is: 105,183.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,416.17 : 167,660.07 = 76,171.94 : x
  2. Step 2: Convert to fraction form
    121,416.17/167,660.07 = 76,171.94/x
  3. Step 3: Cross multiply
    121,416.17x = 167,660.07 × 76,171.94
  4. Step 4: Simplify right side
    121,416.17x = 12,770,991,668.49
  5. Step 5: Solve for x
    x = 12,770,991,668.49/121,416.17
  6. Step 6: Final answer
    x = 105,183.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.