Finding the Fourth Proportional to 122,618.68, 183,774.12 and 52,415.44
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Solution
The fourth proportional to 122,618.68, 183,774.12 and 52,415.44 is: 78,557.37
Step by Step Solution
- Step 1: Write the proportion equation
122,618.68 : 183,774.12 = 52,415.44 : x - Step 2: Convert to fraction form
122,618.68/183,774.12 = 52,415.44/x - Step 3: Cross multiply
122,618.68x = 183,774.12 × 52,415.44 - Step 4: Simplify right side
122,618.68x = 9,632,601,360.41 - Step 5: Solve for x
x = 9,632,601,360.41/122,618.68 - Step 6: Final answer
x = 78,557.37
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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.