Finding the Fourth Proportional to 134,860.84, 186,107.05 and 74,431.49
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Solution
The fourth proportional to 134,860.84, 186,107.05 and 74,431.49 is: 102,714.94
Step by Step Solution
- Step 1: Write the proportion equation
134,860.84 : 186,107.05 = 74,431.49 : x - Step 2: Convert to fraction form
134,860.84/186,107.05 = 74,431.49/x - Step 3: Cross multiply
134,860.84x = 186,107.05 × 74,431.49 - Step 4: Simplify right side
134,860.84x = 13,852,223,914.39 - Step 5: Solve for x
x = 13,852,223,914.39/134,860.84 - Step 6: Final answer
x = 102,714.94
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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.