Home / 112,868.26-155,774-69,861.54

Finding the Fourth Proportional to 112,868.26, 155,774 and 69,861.54

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Solution

The fourth proportional to 112,868.26, 155,774 and 69,861.54 is: 96,418.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,868.26 : 155,774 = 69,861.54 : x
  2. Step 2: Convert to fraction form
    112,868.26/155,774 = 69,861.54/x
  3. Step 3: Cross multiply
    112,868.26x = 155,774 × 69,861.54
  4. Step 4: Simplify right side
    112,868.26x = 10,882,611,531.96
  5. Step 5: Solve for x
    x = 10,882,611,531.96/112,868.26
  6. Step 6: Final answer
    x = 96,418.71

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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.