Finding the Fourth Proportional to 104,121.08, 143,687.28 and 56,374.88
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Solution
The fourth proportional to 104,121.08, 143,687.28 and 56,374.88 is: 77,797.44
Step by Step Solution
- Step 1: Write the proportion equation
104,121.08 : 143,687.28 = 56,374.88 : x - Step 2: Convert to fraction form
104,121.08/143,687.28 = 56,374.88/x - Step 3: Cross multiply
104,121.08x = 143,687.28 × 56,374.88 - Step 4: Simplify right side
104,121.08x = 8,100,353,167.53 - Step 5: Solve for x
x = 8,100,353,167.53/104,121.08 - Step 6: Final answer
x = 77,797.44
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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.