Home / 100,961.92-151,445.36-48,313.60

Finding the Fourth Proportional to 100,961.92, 151,445.36 and 48,313.60

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Solution

The fourth proportional to 100,961.92, 151,445.36 and 48,313.60 is: 72,471.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,961.92 : 151,445.36 = 48,313.60 : x
  2. Step 2: Convert to fraction form
    100,961.92/151,445.36 = 48,313.60/x
  3. Step 3: Cross multiply
    100,961.92x = 151,445.36 × 48,313.60
  4. Step 4: Simplify right side
    100,961.92x = 7,316,870,544.90
  5. Step 5: Solve for x
    x = 7,316,870,544.90/100,961.92
  6. Step 6: Final answer
    x = 72,471.59

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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.