Finding the Fourth Proportional to 132,918.15, 199,388.02 and 39,423.63
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Solution
The fourth proportional to 132,918.15, 199,388.02 and 39,423.63 is: 59,138.65
Step by Step Solution
- Step 1: Write the proportion equation
132,918.15 : 199,388.02 = 39,423.63 : x - Step 2: Convert to fraction form
132,918.15/199,388.02 = 39,423.63/x - Step 3: Cross multiply
132,918.15x = 199,388.02 × 39,423.63 - Step 4: Simplify right side
132,918.15x = 7,860,599,526.91 - Step 5: Solve for x
x = 7,860,599,526.91/132,918.15 - Step 6: Final answer
x = 59,138.65
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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.