Finding the Fourth Proportional to 170,436.99, 235,189.11 and 98,821.38
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Solution
The fourth proportional to 170,436.99, 235,189.11 and 98,821.38 is: 136,365.42
Step by Step Solution
- Step 1: Write the proportion equation
170,436.99 : 235,189.11 = 98,821.38 : x - Step 2: Convert to fraction form
170,436.99/235,189.11 = 98,821.38/x - Step 3: Cross multiply
170,436.99x = 235,189.11 × 98,821.38 - Step 4: Simplify right side
170,436.99x = 23,241,712,411.17 - Step 5: Solve for x
x = 23,241,712,411.17/170,436.99 - Step 6: Final answer
x = 136,365.42
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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.