Finding the Fourth Proportional to 138,620.08, 207,893.22 and 38,774.08
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Solution
The fourth proportional to 138,620.08, 207,893.22 and 38,774.08 is: 58,150.80
Step by Step Solution
- Step 1: Write the proportion equation
138,620.08 : 207,893.22 = 38,774.08 : x - Step 2: Convert to fraction form
138,620.08/207,893.22 = 38,774.08/x - Step 3: Cross multiply
138,620.08x = 207,893.22 × 38,774.08 - Step 4: Simplify right side
138,620.08x = 8,060,868,343.74 - Step 5: Solve for x
x = 8,060,868,343.74/138,620.08 - Step 6: Final answer
x = 58,150.80
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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.