Finding the Third Proportional to 74,859.75 and 115,387.31
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Solution
The third proportional to 74,859.75 and 115,387.31 is: 177,855.68
Step by Step Solution
- Step 1: Write the proportion equation
74,859.75 : 115,387.31 = 115,387.31 : x - Step 2: Convert to fraction form
74,859.75/115,387.31 = 115,387.31/x - Step 3: Cross multiply
74,859.75x = 115,387.31 × 115,387.31 - Step 4: Simplify right side
74,859.75x = 13,314,231,885.97 - Step 5: Solve for x
x = 13,314,231,885.97/74,859.75 - Step 6: Final answer
x = 177,855.68
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These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.