Home / 123,494.37-170,422.41-66,905.75

Finding the Fourth Proportional to 123,494.37, 170,422.41 and 66,905.75

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Solution

The fourth proportional to 123,494.37, 170,422.41 and 66,905.75 is: 92,330.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,494.37 : 170,422.41 = 66,905.75 : x
  2. Step 2: Convert to fraction form
    123,494.37/170,422.41 = 66,905.75/x
  3. Step 3: Cross multiply
    123,494.37x = 170,422.41 × 66,905.75
  4. Step 4: Simplify right side
    123,494.37x = 11,402,239,157.86
  5. Step 5: Solve for x
    x = 11,402,239,157.86/123,494.37
  6. Step 6: Final answer
    x = 92,330.03

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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.