Home / 121,230.27-167,286.51-70,245

Finding the Fourth Proportional to 121,230.27, 167,286.51 and 70,245

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Solution

The fourth proportional to 121,230.27, 167,286.51 and 70,245 is: 96,931.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,230.27 : 167,286.51 = 70,245 : x
  2. Step 2: Convert to fraction form
    121,230.27/167,286.51 = 70,245/x
  3. Step 3: Cross multiply
    121,230.27x = 167,286.51 × 70,245
  4. Step 4: Simplify right side
    121,230.27x = 11,751,040,894.95
  5. Step 5: Solve for x
    x = 11,751,040,894.95/121,230.27
  6. Step 6: Final answer
    x = 96,931.57

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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.