Finding the Fourth Proportional to 74,168.19, 102,352.59 and 40,176.68
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Solution
The fourth proportional to 74,168.19, 102,352.59 and 40,176.68 is: 55,444.08
Step by Step Solution
- Step 1: Write the proportion equation
74,168.19 : 102,352.59 = 40,176.68 : x - Step 2: Convert to fraction form
74,168.19/102,352.59 = 40,176.68/x - Step 3: Cross multiply
74,168.19x = 102,352.59 × 40,176.68 - Step 4: Simplify right side
74,168.19x = 4,112,187,255.60 - Step 5: Solve for x
x = 4,112,187,255.60/74,168.19 - Step 6: Final answer
x = 55,444.08
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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.