Finding the Fourth Proportional to 135,163.50, 186,518.10 and 74,730.62
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Solution
The fourth proportional to 135,163.50, 186,518.10 and 74,730.62 is: 103,124.09
Step by Step Solution
- Step 1: Write the proportion equation
135,163.50 : 186,518.10 = 74,730.62 : x - Step 2: Convert to fraction form
135,163.50/186,518.10 = 74,730.62/x - Step 3: Cross multiply
135,163.50x = 186,518.10 × 74,730.62 - Step 4: Simplify right side
135,163.50x = 13,938,613,254.22 - Step 5: Solve for x
x = 13,938,613,254.22/135,163.50 - Step 6: Final answer
x = 103,124.09
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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.