Home / 112,201.72-154,836.30-61,899.64

Finding the Fourth Proportional to 112,201.72, 154,836.30 and 61,899.64

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Solution

The fourth proportional to 112,201.72, 154,836.30 and 61,899.64 is: 85,420.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,201.72 : 154,836.30 = 61,899.64 : x
  2. Step 2: Convert to fraction form
    112,201.72/154,836.30 = 61,899.64/x
  3. Step 3: Cross multiply
    112,201.72x = 154,836.30 × 61,899.64
  4. Step 4: Simplify right side
    112,201.72x = 9,584,311,228.93
  5. Step 5: Solve for x
    x = 9,584,311,228.93/112,201.72
  6. Step 6: Final answer
    x = 85,420.36

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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.