Finding the Fourth Proportional to 163,590.12, 225,754.11 and 91,970.28
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Solution
The fourth proportional to 163,590.12, 225,754.11 and 91,970.28 is: 126,918.84
Step by Step Solution
- Step 1: Write the proportion equation
163,590.12 : 225,754.11 = 91,970.28 : x - Step 2: Convert to fraction form
163,590.12/225,754.11 = 91,970.28/x - Step 3: Cross multiply
163,590.12x = 225,754.11 × 91,970.28 - Step 4: Simplify right side
163,590.12x = 20,762,668,707.85 - Step 5: Solve for x
x = 20,762,668,707.85/163,590.12 - Step 6: Final answer
x = 126,918.84
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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.