Home / 121,704.12-167,950.86-67,989.15

Finding the Fourth Proportional to 121,704.12, 167,950.86 and 67,989.15

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Solution

The fourth proportional to 121,704.12, 167,950.86 and 67,989.15 is: 93,824.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,704.12 : 167,950.86 = 67,989.15 : x
  2. Step 2: Convert to fraction form
    121,704.12/167,950.86 = 67,989.15/x
  3. Step 3: Cross multiply
    121,704.12x = 167,950.86 × 67,989.15
  4. Step 4: Simplify right side
    121,704.12x = 11,418,836,213.17
  5. Step 5: Solve for x
    x = 11,418,836,213.17/121,704.12
  6. Step 6: Final answer
    x = 93,824.57

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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.