Home / 121,555.82-167,755.46-67,851.34

Finding the Fourth Proportional to 121,555.82, 167,755.46 and 67,851.34

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Solution

The fourth proportional to 121,555.82, 167,755.46 and 67,851.34 is: 93,639.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,555.82 : 167,755.46 = 67,851.34 : x
  2. Step 2: Convert to fraction form
    121,555.82/167,755.46 = 67,851.34/x
  3. Step 3: Cross multiply
    121,555.82x = 167,755.46 × 67,851.34
  4. Step 4: Simplify right side
    121,555.82x = 11,382,431,994.67
  5. Step 5: Solve for x
    x = 11,382,431,994.67/121,555.82
  6. Step 6: Final answer
    x = 93,639.55

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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.