Home / 123,845.84-170,905.76-67,257.60

Finding the Fourth Proportional to 123,845.84, 170,905.76 and 67,257.60

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Solution

The fourth proportional to 123,845.84, 170,905.76 and 67,257.60 is: 92,814.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,845.84 : 170,905.76 = 67,257.60 : x
  2. Step 2: Convert to fraction form
    123,845.84/170,905.76 = 67,257.60/x
  3. Step 3: Cross multiply
    123,845.84x = 170,905.76 × 67,257.60
  4. Step 4: Simplify right side
    123,845.84x = 11,494,711,243.78
  5. Step 5: Solve for x
    x = 11,494,711,243.78/123,845.84
  6. Step 6: Final answer
    x = 92,814.67

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1.5x scale

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.