Finding the Fourth Proportional to 122,553.19, 183,790.90 and 39,427.75
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Solution
The fourth proportional to 122,553.19, 183,790.90 and 39,427.75 is: 59,129.11
Step by Step Solution
- Step 1: Write the proportion equation
122,553.19 : 183,790.90 = 39,427.75 : x - Step 2: Convert to fraction form
122,553.19/183,790.90 = 39,427.75/x - Step 3: Cross multiply
122,553.19x = 183,790.90 × 39,427.75 - Step 4: Simplify right side
122,553.19x = 7,246,461,657.48 - Step 5: Solve for x
x = 7,246,461,657.48/122,553.19 - Step 6: Final answer
x = 59,129.11
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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.