Home / 121,131.35-167,159.60-67,416.38

Finding the Fourth Proportional to 121,131.35, 167,159.60 and 67,416.38

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Solution

The fourth proportional to 121,131.35, 167,159.60 and 67,416.38 is: 93,033.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,131.35 : 167,159.60 = 67,416.38 : x
  2. Step 2: Convert to fraction form
    121,131.35/167,159.60 = 67,416.38/x
  3. Step 3: Cross multiply
    121,131.35x = 167,159.60 × 67,416.38
  4. Step 4: Simplify right side
    121,131.35x = 11,269,295,114.25
  5. Step 5: Solve for x
    x = 11,269,295,114.25/121,131.35
  6. Step 6: Final answer
    x = 93,033.68

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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.