Home / 121,131.55-167,161.37-67,415.29

Finding the Fourth Proportional to 121,131.55, 167,161.37 and 67,415.29

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Solution

The fourth proportional to 121,131.55, 167,161.37 and 67,415.29 is: 93,033.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,131.55 : 167,161.37 = 67,415.29 : x
  2. Step 2: Convert to fraction form
    121,131.55/167,161.37 = 67,415.29/x
  3. Step 3: Cross multiply
    121,131.55x = 167,161.37 × 67,415.29
  4. Step 4: Simplify right side
    121,131.55x = 11,269,231,859.58
  5. Step 5: Solve for x
    x = 11,269,231,859.58/121,131.55
  6. Step 6: Final answer
    x = 93,033.00

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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.