Home / 131,009.75-196,319.87-67,745.45

Finding the Fourth Proportional to 131,009.75, 196,319.87 and 67,745.45

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Solution

The fourth proportional to 131,009.75, 196,319.87 and 67,745.45 is: 101,517.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,009.75 : 196,319.87 = 67,745.45 : x
  2. Step 2: Convert to fraction form
    131,009.75/196,319.87 = 67,745.45/x
  3. Step 3: Cross multiply
    131,009.75x = 196,319.87 × 67,745.45
  4. Step 4: Simplify right side
    131,009.75x = 13,299,777,238.91
  5. Step 5: Solve for x
    x = 13,299,777,238.91/131,009.75
  6. Step 6: Final answer
    x = 101,517.46

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1.5x scale

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.