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Finding the Fourth Proportional to 121,305.62, 167,399.52 and 67,589.48

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Solution

The fourth proportional to 121,305.62, 167,399.52 and 67,589.48 is: 93,272.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,305.62 : 167,399.52 = 67,589.48 : x
  2. Step 2: Convert to fraction form
    121,305.62/167,399.52 = 67,589.48/x
  3. Step 3: Cross multiply
    121,305.62x = 167,399.52 × 67,589.48
  4. Step 4: Simplify right side
    121,305.62x = 11,314,446,509.05
  5. Step 5: Solve for x
    x = 11,314,446,509.05/121,305.62
  6. Step 6: Final answer
    x = 93,272.24

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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.