Finding the Fourth Proportional to 170,512.16, 235,455.36 and 106,959.20
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Solution
The fourth proportional to 170,512.16, 235,455.36 and 106,959.20 is: 147,696.90
Step by Step Solution
- Step 1: Write the proportion equation
170,512.16 : 235,455.36 = 106,959.20 : x - Step 2: Convert to fraction form
170,512.16/235,455.36 = 106,959.20/x - Step 3: Cross multiply
170,512.16x = 235,455.36 × 106,959.20 - Step 4: Simplify right side
170,512.16x = 25,184,116,941.31 - Step 5: Solve for x
x = 25,184,116,941.31/170,512.16 - Step 6: Final answer
x = 147,696.90
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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.