Home / 112,222.56-154,866.80-61,921.60

Finding the Fourth Proportional to 112,222.56, 154,866.80 and 61,921.60

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Solution

The fourth proportional to 112,222.56, 154,866.80 and 61,921.60 is: 85,451.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,222.56 : 154,866.80 = 61,921.60 : x
  2. Step 2: Convert to fraction form
    112,222.56/154,866.80 = 61,921.60/x
  3. Step 3: Cross multiply
    112,222.56x = 154,866.80 × 61,921.60
  4. Step 4: Simplify right side
    112,222.56x = 9,589,600,042.88
  5. Step 5: Solve for x
    x = 9,589,600,042.88/112,222.56
  6. Step 6: Final answer
    x = 85,451.62

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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.