Finding the Fourth Proportional to 137,893.64, 190,315.81 and 114,886.99
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Solution
The fourth proportional to 137,893.64, 190,315.81 and 114,886.99 is: 158,562.87
Step by Step Solution
- Step 1: Write the proportion equation
137,893.64 : 190,315.81 = 114,886.99 : x - Step 2: Convert to fraction form
137,893.64/190,315.81 = 114,886.99/x - Step 3: Cross multiply
137,893.64x = 190,315.81 × 114,886.99 - Step 4: Simplify right side
137,893.64x = 21,864,810,941.82 - Step 5: Solve for x
x = 21,864,810,941.82/137,893.64 - Step 6: Final answer
x = 158,562.87
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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.