Home / 123,845.76-170,906.40-67,256.64

Finding the Fourth Proportional to 123,845.76, 170,906.40 and 67,256.64

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Solution

The fourth proportional to 123,845.76, 170,906.40 and 67,256.64 is: 92,813.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,845.76 : 170,906.40 = 67,256.64 : x
  2. Step 2: Convert to fraction form
    123,845.76/170,906.40 = 67,256.64/x
  3. Step 3: Cross multiply
    123,845.76x = 170,906.40 × 67,256.64
  4. Step 4: Simplify right side
    123,845.76x = 11,494,590,218.50
  5. Step 5: Solve for x
    x = 11,494,590,218.50/123,845.76
  6. Step 6: Final answer
    x = 92,813.76

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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.