Home / 185,621.87-256,157.16-100,738.73

Finding the Fourth Proportional to 185,621.87, 256,157.16 and 100,738.73

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Solution

The fourth proportional to 185,621.87, 256,157.16 and 100,738.73 is: 139,018.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,621.87 : 256,157.16 = 100,738.73 : x
  2. Step 2: Convert to fraction form
    185,621.87/256,157.16 = 100,738.73/x
  3. Step 3: Cross multiply
    185,621.87x = 256,157.16 × 100,738.73
  4. Step 4: Simplify right side
    185,621.87x = 25,804,946,978.81
  5. Step 5: Solve for x
    x = 25,804,946,978.81/185,621.87
  6. Step 6: Final answer
    x = 139,018.89

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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.