Home / 123,739.12-170,759.98-67,150.49

Finding the Fourth Proportional to 123,739.12, 170,759.98 and 67,150.49

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Solution

The fourth proportional to 123,739.12, 170,759.98 and 67,150.49 is: 92,667.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,739.12 : 170,759.98 = 67,150.49 : x
  2. Step 2: Convert to fraction form
    123,739.12/170,759.98 = 67,150.49/x
  3. Step 3: Cross multiply
    123,739.12x = 170,759.98 × 67,150.49
  4. Step 4: Simplify right side
    123,739.12x = 11,466,615,993.64
  5. Step 5: Solve for x
    x = 11,466,615,993.64/123,739.12
  6. Step 6: Final answer
    x = 92,667.67

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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.