Finding the Fourth Proportional to 135,152.80, 186,496.57 and 74,713.70
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Solution
The fourth proportional to 135,152.80, 186,496.57 and 74,713.70 is: 103,097.00
Step by Step Solution
- Step 1: Write the proportion equation
135,152.80 : 186,496.57 = 74,713.70 : x - Step 2: Convert to fraction form
135,152.80/186,496.57 = 74,713.70/x - Step 3: Cross multiply
135,152.80x = 186,496.57 × 74,713.70 - Step 4: Simplify right side
135,152.80x = 13,933,848,782.01 - Step 5: Solve for x
x = 13,933,848,782.01/135,152.80 - Step 6: Final answer
x = 103,097.00
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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.