Home / 128,014.92-192,141.27-64,879.56

Finding the Fourth Proportional to 128,014.92, 192,141.27 and 64,879.56

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Solution

The fourth proportional to 128,014.92, 192,141.27 and 64,879.56 is: 97,379.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,014.92 : 192,141.27 = 64,879.56 : x
  2. Step 2: Convert to fraction form
    128,014.92/192,141.27 = 64,879.56/x
  3. Step 3: Cross multiply
    128,014.92x = 192,141.27 × 64,879.56
  4. Step 4: Simplify right side
    128,014.92x = 12,466,041,055.44
  5. Step 5: Solve for x
    x = 12,466,041,055.44/128,014.92
  6. Step 6: Final answer
    x = 97,379.59

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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.