Home / 180,640.32-248,993.10-122,478.21

Finding the Fourth Proportional to 180,640.32, 248,993.10 and 122,478.21

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Solution

The fourth proportional to 180,640.32, 248,993.10 and 122,478.21 is: 168,822.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,640.32 : 248,993.10 = 122,478.21 : x
  2. Step 2: Convert to fraction form
    180,640.32/248,993.10 = 122,478.21/x
  3. Step 3: Cross multiply
    180,640.32x = 248,993.10 × 122,478.21
  4. Step 4: Simplify right side
    180,640.32x = 30,496,229,190.35
  5. Step 5: Solve for x
    x = 30,496,229,190.35/180,640.32
  6. Step 6: Final answer
    x = 168,822.94

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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.