Home / 123,640.20-185,460.30-122,718.60

Finding the Fourth Proportional to 123,640.20, 185,460.30 and 122,718.60

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Solution

The fourth proportional to 123,640.20, 185,460.30 and 122,718.60 is: 184,077.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,640.20 : 185,460.30 = 122,718.60 : x
  2. Step 2: Convert to fraction form
    123,640.20/185,460.30 = 122,718.60/x
  3. Step 3: Cross multiply
    123,640.20x = 185,460.30 × 122,718.60
  4. Step 4: Simplify right side
    123,640.20x = 22,759,428,371.58
  5. Step 5: Solve for x
    x = 22,759,428,371.58/123,640.20
  6. Step 6: Final answer
    x = 184,077.90

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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.