Home / 112,122.41-154,766.42-66,814.61

Finding the Fourth Proportional to 112,122.41, 154,766.42 and 66,814.61

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Solution

The fourth proportional to 112,122.41, 154,766.42 and 66,814.61 is: 92,226.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,122.41 : 154,766.42 = 66,814.61 : x
  2. Step 2: Convert to fraction form
    112,122.41/154,766.42 = 66,814.61/x
  3. Step 3: Cross multiply
    112,122.41x = 154,766.42 × 66,814.61
  4. Step 4: Simplify right side
    112,122.41x = 10,340,657,136.05
  5. Step 5: Solve for x
    x = 10,340,657,136.05/112,122.41
  6. Step 6: Final answer
    x = 92,226.50

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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.