Home / 121,716.36-167,949-67,998.60

Finding the Fourth Proportional to 121,716.36, 167,949 and 67,998.60

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Solution

The fourth proportional to 121,716.36, 167,949 and 67,998.60 is: 93,827.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,716.36 : 167,949 = 67,998.60 : x
  2. Step 2: Convert to fraction form
    121,716.36/167,949 = 67,998.60/x
  3. Step 3: Cross multiply
    121,716.36x = 167,949 × 67,998.60
  4. Step 4: Simplify right side
    121,716.36x = 11,420,296,871.40
  5. Step 5: Solve for x
    x = 11,420,296,871.40/121,716.36
  6. Step 6: Final answer
    x = 93,827.13

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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.