Home / 123,771.64-170,803.86-67,181.80

Finding the Fourth Proportional to 123,771.64, 170,803.86 and 67,181.80

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Solution

The fourth proportional to 123,771.64, 170,803.86 and 67,181.80 is: 92,710.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,771.64 : 170,803.86 = 67,181.80 : x
  2. Step 2: Convert to fraction form
    123,771.64/170,803.86 = 67,181.80/x
  3. Step 3: Cross multiply
    123,771.64x = 170,803.86 × 67,181.80
  4. Step 4: Simplify right side
    123,771.64x = 11,474,910,761.75
  5. Step 5: Solve for x
    x = 11,474,910,761.75/123,771.64
  6. Step 6: Final answer
    x = 92,710.34

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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.