Home / 131,664.85-197,163.15-72,433.60

Finding the Fourth Proportional to 131,664.85, 197,163.15 and 72,433.60

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Solution

The fourth proportional to 131,664.85, 197,163.15 and 72,433.60 is: 108,466.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,664.85 : 197,163.15 = 72,433.60 : x
  2. Step 2: Convert to fraction form
    131,664.85/197,163.15 = 72,433.60/x
  3. Step 3: Cross multiply
    131,664.85x = 197,163.15 × 72,433.60
  4. Step 4: Simplify right side
    131,664.85x = 14,281,236,741.84
  5. Step 5: Solve for x
    x = 14,281,236,741.84/131,664.85
  6. Step 6: Final answer
    x = 108,466.59

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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.