Home / 121,255.82-167,333.27-70,278.47

Finding the Fourth Proportional to 121,255.82, 167,333.27 and 70,278.47

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Solution

The fourth proportional to 121,255.82, 167,333.27 and 70,278.47 is: 96,984.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,255.82 : 167,333.27 = 70,278.47 : x
  2. Step 2: Convert to fraction form
    121,255.82/167,333.27 = 70,278.47/x
  3. Step 3: Cross multiply
    121,255.82x = 167,333.27 × 70,278.47
  4. Step 4: Simplify right side
    121,255.82x = 11,759,925,007.64
  5. Step 5: Solve for x
    x = 11,759,925,007.64/121,255.82
  6. Step 6: Final answer
    x = 96,984.42

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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.