Home / 123,015.60-184,407.30-66,772.80

Finding the Fourth Proportional to 123,015.60, 184,407.30 and 66,772.80

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Solution

The fourth proportional to 123,015.60, 184,407.30 and 66,772.80 is: 100,096.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,015.60 : 184,407.30 = 66,772.80 : x
  2. Step 2: Convert to fraction form
    123,015.60/184,407.30 = 66,772.80/x
  3. Step 3: Cross multiply
    123,015.60x = 184,407.30 × 66,772.80
  4. Step 4: Simplify right side
    123,015.60x = 12,313,391,761.44
  5. Step 5: Solve for x
    x = 12,313,391,761.44/123,015.60
  6. Step 6: Final answer
    x = 100,096.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.