Home / 88,198.63-121,709.51-47,912.27

Finding the Fourth Proportional to 88,198.63, 121,709.51 and 47,912.27

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Solution

The fourth proportional to 88,198.63, 121,709.51 and 47,912.27 is: 66,116.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,198.63 : 121,709.51 = 47,912.27 : x
  2. Step 2: Convert to fraction form
    88,198.63/121,709.51 = 47,912.27/x
  3. Step 3: Cross multiply
    88,198.63x = 121,709.51 × 47,912.27
  4. Step 4: Simplify right side
    88,198.63x = 5,831,379,226.77
  5. Step 5: Solve for x
    x = 5,831,379,226.77/88,198.63
  6. Step 6: Final answer
    x = 66,116.43

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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.