Finding the Fourth Proportional to 170,390.12, 235,178.46 and 105,908.09
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Solution
The fourth proportional to 170,390.12, 235,178.46 and 105,908.09 is: 146,178.08
Step by Step Solution
- Step 1: Write the proportion equation
170,390.12 : 235,178.46 = 105,908.09 : x - Step 2: Convert to fraction form
170,390.12/235,178.46 = 105,908.09/x - Step 3: Cross multiply
170,390.12x = 235,178.46 × 105,908.09 - Step 4: Simplify right side
170,390.12x = 24,907,300,331.85 - Step 5: Solve for x
x = 24,907,300,331.85/170,390.12 - Step 6: Final answer
x = 146,178.08
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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.