Finding the Fourth Proportional to 135,117.75, 186,460.45 and 74,687.05
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Solution
The fourth proportional to 135,117.75, 186,460.45 and 74,687.05 is: 103,067.00
Step by Step Solution
- Step 1: Write the proportion equation
135,117.75 : 186,460.45 = 74,687.05 : x - Step 2: Convert to fraction form
135,117.75/186,460.45 = 74,687.05/x - Step 3: Cross multiply
135,117.75x = 186,460.45 × 74,687.05 - Step 4: Simplify right side
135,117.75x = 13,926,180,952.17 - Step 5: Solve for x
x = 13,926,180,952.17/135,117.75 - Step 6: Final answer
x = 103,067.00
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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.