Home / 128,490.39-192,687.53-44,226.81

Finding the Fourth Proportional to 128,490.39, 192,687.53 and 44,226.81

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Solution

The fourth proportional to 128,490.39, 192,687.53 and 44,226.81 is: 66,323.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,490.39 : 192,687.53 = 44,226.81 : x
  2. Step 2: Convert to fraction form
    128,490.39/192,687.53 = 44,226.81/x
  3. Step 3: Cross multiply
    128,490.39x = 192,687.53 × 44,226.81
  4. Step 4: Simplify right side
    128,490.39x = 8,521,954,557.55
  5. Step 5: Solve for x
    x = 8,521,954,557.55/128,490.39
  6. Step 6: Final answer
    x = 66,323.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.