Home / 100,865.15-139,194.32-60,579.60

Finding the Fourth Proportional to 100,865.15, 139,194.32 and 60,579.60

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Solution

The fourth proportional to 100,865.15, 139,194.32 and 60,579.60 is: 83,600.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,865.15 : 139,194.32 = 60,579.60 : x
  2. Step 2: Convert to fraction form
    100,865.15/139,194.32 = 60,579.60/x
  3. Step 3: Cross multiply
    100,865.15x = 139,194.32 × 60,579.60
  4. Step 4: Simplify right side
    100,865.15x = 8,432,336,185.96
  5. Step 5: Solve for x
    x = 8,432,336,185.96/100,865.15
  6. Step 6: Final answer
    x = 83,600.09

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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.