Finding the Fourth Proportional to 131,838.98, 181,937.34 and 71,409.48
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Solution
The fourth proportional to 131,838.98, 181,937.34 and 71,409.48 is: 98,544.84
Step by Step Solution
- Step 1: Write the proportion equation
131,838.98 : 181,937.34 = 71,409.48 : x - Step 2: Convert to fraction form
131,838.98/181,937.34 = 71,409.48/x - Step 3: Cross multiply
131,838.98x = 181,937.34 × 71,409.48 - Step 4: Simplify right side
131,838.98x = 12,992,050,841.98 - Step 5: Solve for x
x = 12,992,050,841.98/131,838.98 - Step 6: Final answer
x = 98,544.84
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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.