Finding the Fourth Proportional to 135,146.64, 186,493.68 and 74,706.06
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Solution
The fourth proportional to 135,146.64, 186,493.68 and 74,706.06 is: 103,089.56
Step by Step Solution
- Step 1: Write the proportion equation
135,146.64 : 186,493.68 = 74,706.06 : x - Step 2: Convert to fraction form
135,146.64/186,493.68 = 74,706.06/x - Step 3: Cross multiply
135,146.64x = 186,493.68 × 74,706.06 - Step 4: Simplify right side
135,146.64x = 13,932,208,047.70 - Step 5: Solve for x
x = 13,932,208,047.70/135,146.64 - Step 6: Final answer
x = 103,089.56
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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.