Finding the Fourth Proportional to 104,311.26, 143,946.99 and 56,563.38
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Solution
The fourth proportional to 104,311.26, 143,946.99 and 56,563.38 is: 78,056.08
Step by Step Solution
- Step 1: Write the proportion equation
104,311.26 : 143,946.99 = 56,563.38 : x - Step 2: Convert to fraction form
104,311.26/143,946.99 = 56,563.38/x - Step 3: Cross multiply
104,311.26x = 143,946.99 × 56,563.38 - Step 4: Simplify right side
104,311.26x = 8,142,128,295.23 - Step 5: Solve for x
x = 8,142,128,295.23/104,311.26 - Step 6: Final answer
x = 78,056.08
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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.