Finding the Fourth Proportional to 170,908.16, 235,851.92 and 99,330.08
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Solution
The fourth proportional to 170,908.16, 235,851.92 and 99,330.08 is: 137,074.73
Step by Step Solution
- Step 1: Write the proportion equation
170,908.16 : 235,851.92 = 99,330.08 : x - Step 2: Convert to fraction form
170,908.16/235,851.92 = 99,330.08/x - Step 3: Cross multiply
170,908.16x = 235,851.92 × 99,330.08 - Step 4: Simplify right side
170,908.16x = 23,427,190,081.75 - Step 5: Solve for x
x = 23,427,190,081.75/170,908.16 - Step 6: Final answer
x = 137,074.73
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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.