Home / 112,201.20-154,833.12-61,899.12

Finding the Fourth Proportional to 112,201.20, 154,833.12 and 61,899.12

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Solution

The fourth proportional to 112,201.20, 154,833.12 and 61,899.12 is: 85,418.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,201.20 : 154,833.12 = 61,899.12 : x
  2. Step 2: Convert to fraction form
    112,201.20/154,833.12 = 61,899.12/x
  3. Step 3: Cross multiply
    112,201.20x = 154,833.12 × 61,899.12
  4. Step 4: Simplify right side
    112,201.20x = 9,584,033,874.85
  5. Step 5: Solve for x
    x = 9,584,033,874.85/112,201.20
  6. Step 6: Final answer
    x = 85,418.28

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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.