Home / 121,198-167,266.20-70,939.12

Finding the Fourth Proportional to 121,198, 167,266.20 and 70,939.12

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Solution

The fourth proportional to 121,198, 167,266.20 and 70,939.12 is: 97,903.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,198 : 167,266.20 = 70,939.12 : x
  2. Step 2: Convert to fraction form
    121,198/167,266.20 = 70,939.12/x
  3. Step 3: Cross multiply
    121,198x = 167,266.20 × 70,939.12
  4. Step 4: Simplify right side
    121,198x = 11,865,717,033.74
  5. Step 5: Solve for x
    x = 11,865,717,033.74/121,198
  6. Step 6: Final answer
    x = 97,903.57

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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.