Finding the Fourth Proportional to 135,160.64, 186,518.37 and 74,729.75
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Solution
The fourth proportional to 135,160.64, 186,518.37 and 74,729.75 is: 103,125.22
Step by Step Solution
- Step 1: Write the proportion equation
135,160.64 : 186,518.37 = 74,729.75 : x - Step 2: Convert to fraction form
135,160.64/186,518.37 = 74,729.75/x - Step 3: Cross multiply
135,160.64x = 186,518.37 × 74,729.75 - Step 4: Simplify right side
135,160.64x = 13,938,470,227.92 - Step 5: Solve for x
x = 13,938,470,227.92/135,160.64 - Step 6: Final answer
x = 103,125.22
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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.