Home / 139,588.92-192,546.32-121,726.80

Finding the Fourth Proportional to 139,588.92, 192,546.32 and 121,726.80

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Solution

The fourth proportional to 139,588.92, 192,546.32 and 121,726.80 is: 167,907.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,588.92 : 192,546.32 = 121,726.80 : x
  2. Step 2: Convert to fraction form
    139,588.92/192,546.32 = 121,726.80/x
  3. Step 3: Cross multiply
    139,588.92x = 192,546.32 × 121,726.80
  4. Step 4: Simplify right side
    139,588.92x = 23,438,046,776.74
  5. Step 5: Solve for x
    x = 23,438,046,776.74/139,588.92
  6. Step 6: Final answer
    x = 167,907.64

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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.