Finding the Fourth Proportional to 137,877.21, 190,265.64 and 84,251.97
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Solution
The fourth proportional to 137,877.21, 190,265.64 and 84,251.97 is: 116,264.72
Step by Step Solution
- Step 1: Write the proportion equation
137,877.21 : 190,265.64 = 84,251.97 : x - Step 2: Convert to fraction form
137,877.21/190,265.64 = 84,251.97/x - Step 3: Cross multiply
137,877.21x = 190,265.64 × 84,251.97 - Step 4: Simplify right side
137,877.21x = 16,030,254,993.31 - Step 5: Solve for x
x = 16,030,254,993.31/137,877.21 - Step 6: Final answer
x = 116,264.72
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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.