Finding the Fourth Proportional to 170,816.23, 235,708.95 and 99,211.42
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Solution
The fourth proportional to 170,816.23, 235,708.95 and 99,211.42 is: 136,901.63
Step by Step Solution
- Step 1: Write the proportion equation
170,816.23 : 235,708.95 = 99,211.42 : x - Step 2: Convert to fraction form
170,816.23/235,708.95 = 99,211.42/x - Step 3: Cross multiply
170,816.23x = 235,708.95 × 99,211.42 - Step 4: Simplify right side
170,816.23x = 23,385,019,636.21 - Step 5: Solve for x
x = 23,385,019,636.21/170,816.23 - Step 6: Final answer
x = 136,901.63
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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.