Finding the Fourth Proportional to 135,274.47, 186,684.28 and 74,844.14
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Solution
The fourth proportional to 135,274.47, 186,684.28 and 74,844.14 is: 103,287.95
Step by Step Solution
- Step 1: Write the proportion equation
135,274.47 : 186,684.28 = 74,844.14 : x - Step 2: Convert to fraction form
135,274.47/186,684.28 = 74,844.14/x - Step 3: Cross multiply
135,274.47x = 186,684.28 × 74,844.14 - Step 4: Simplify right side
135,274.47x = 13,972,223,080.48 - Step 5: Solve for x
x = 13,972,223,080.48/135,274.47 - Step 6: Final answer
x = 103,287.95
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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.