Home / 123,450.55-170,299.16-78,052.07

Finding the Fourth Proportional to 123,450.55, 170,299.16 and 78,052.07

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Solution

The fourth proportional to 123,450.55, 170,299.16 and 78,052.07 is: 107,672.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,450.55 : 170,299.16 = 78,052.07 : x
  2. Step 2: Convert to fraction form
    123,450.55/170,299.16 = 78,052.07/x
  3. Step 3: Cross multiply
    123,450.55x = 170,299.16 × 78,052.07
  4. Step 4: Simplify right side
    123,450.55x = 13,292,202,285.44
  5. Step 5: Solve for x
    x = 13,292,202,285.44/123,450.55
  6. Step 6: Final answer
    x = 107,672.28

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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.