Home / 135,427.98-203,219.76-105,762.54

Finding the Fourth Proportional to 135,427.98, 203,219.76 and 105,762.54

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Solution

The fourth proportional to 135,427.98, 203,219.76 and 105,762.54 is: 158,704.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,427.98 : 203,219.76 = 105,762.54 : x
  2. Step 2: Convert to fraction form
    135,427.98/203,219.76 = 105,762.54/x
  3. Step 3: Cross multiply
    135,427.98x = 203,219.76 × 105,762.54
  4. Step 4: Simplify right side
    135,427.98x = 21,493,037,995.79
  5. Step 5: Solve for x
    x = 21,493,037,995.79/135,427.98
  6. Step 6: Final answer
    x = 158,704.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.