Finding the Fourth Proportional to 145,878.05, 218,853.98 and 40,696.94
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Solution
The fourth proportional to 145,878.05, 218,853.98 and 40,696.94 is: 61,055.70
Step by Step Solution
- Step 1: Write the proportion equation
145,878.05 : 218,853.98 = 40,696.94 : x - Step 2: Convert to fraction form
145,878.05/218,853.98 = 40,696.94/x - Step 3: Cross multiply
145,878.05x = 218,853.98 × 40,696.94 - Step 4: Simplify right side
145,878.05x = 8,906,685,995.07 - Step 5: Solve for x
x = 8,906,685,995.07/145,878.05 - Step 6: Final answer
x = 61,055.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.