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Finding the Fourth Proportional to 121,640.68, 167,844.99 and 67,923.10

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Solution

The fourth proportional to 121,640.68, 167,844.99 and 67,923.10 is: 93,723.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,640.68 : 167,844.99 = 67,923.10 : x
  2. Step 2: Convert to fraction form
    121,640.68/167,844.99 = 67,923.10/x
  3. Step 3: Cross multiply
    121,640.68x = 167,844.99 × 67,923.10
  4. Step 4: Simplify right side
    121,640.68x = 11,400,552,040.27
  5. Step 5: Solve for x
    x = 11,400,552,040.27/121,640.68
  6. Step 6: Final answer
    x = 93,723.19

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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.