Home / 203,858.18-281,328.06-113,222.54

Finding the Fourth Proportional to 203,858.18, 281,328.06 and 113,222.54

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Solution

The fourth proportional to 203,858.18, 281,328.06 and 113,222.54 is: 156,249.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,858.18 : 281,328.06 = 113,222.54 : x
  2. Step 2: Convert to fraction form
    203,858.18/281,328.06 = 113,222.54/x
  3. Step 3: Cross multiply
    203,858.18x = 281,328.06 × 113,222.54
  4. Step 4: Simplify right side
    203,858.18x = 31,852,677,526.47
  5. Step 5: Solve for x
    x = 31,852,677,526.47/203,858.18
  6. Step 6: Final answer
    x = 156,249.20

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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.