Home / 185,880.08-256,515.60-100,997.12

Finding the Fourth Proportional to 185,880.08, 256,515.60 and 100,997.12

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Solution

The fourth proportional to 185,880.08, 256,515.60 and 100,997.12 is: 139,376.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,880.08 : 256,515.60 = 100,997.12 : x
  2. Step 2: Convert to fraction form
    185,880.08/256,515.60 = 100,997.12/x
  3. Step 3: Cross multiply
    185,880.08x = 256,515.60 × 100,997.12
  4. Step 4: Simplify right side
    185,880.08x = 25,907,336,835.07
  5. Step 5: Solve for x
    x = 25,907,336,835.07/185,880.08
  6. Step 6: Final answer
    x = 139,376.62

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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.