Finding the Fourth Proportional to 151,810.19, 209,516.54 and 88,147.99
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Solution
The fourth proportional to 151,810.19, 209,516.54 and 88,147.99 is: 121,654.95
Step by Step Solution
- Step 1: Write the proportion equation
151,810.19 : 209,516.54 = 88,147.99 : x - Step 2: Convert to fraction form
151,810.19/209,516.54 = 88,147.99/x - Step 3: Cross multiply
151,810.19x = 209,516.54 × 88,147.99 - Step 4: Simplify right side
151,810.19x = 18,468,461,432.01 - Step 5: Solve for x
x = 18,468,461,432.01/151,810.19 - Step 6: Final answer
x = 121,654.95
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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.