Home / 120,715.45-166,584.80-66,997.26

Finding the Fourth Proportional to 120,715.45, 166,584.80 and 66,997.26

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Solution

The fourth proportional to 120,715.45, 166,584.80 and 66,997.26 is: 92,454.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,715.45 : 166,584.80 = 66,997.26 : x
  2. Step 2: Convert to fraction form
    120,715.45/166,584.80 = 66,997.26/x
  3. Step 3: Cross multiply
    120,715.45x = 166,584.80 × 66,997.26
  4. Step 4: Simplify right side
    120,715.45x = 11,160,725,325.14
  5. Step 5: Solve for x
    x = 11,160,725,325.14/120,715.45
  6. Step 6: Final answer
    x = 92,454.82

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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.