Home / 112,122.22-154,766.16-66,814.42

Finding the Fourth Proportional to 112,122.22, 154,766.16 and 66,814.42

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Solution

The fourth proportional to 112,122.22, 154,766.16 and 66,814.42 is: 92,226.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,122.22 : 154,766.16 = 66,814.42 : x
  2. Step 2: Convert to fraction form
    112,122.22/154,766.16 = 66,814.42/x
  3. Step 3: Cross multiply
    112,122.22x = 154,766.16 × 66,814.42
  4. Step 4: Simplify right side
    112,122.22x = 10,340,610,684.02
  5. Step 5: Solve for x
    x = 10,340,610,684.02/112,122.22
  6. Step 6: Final answer
    x = 92,226.24

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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.