Finding the Fourth Proportional to 136,966.77, 189,072.36 and 83,268.93
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Solution
The fourth proportional to 136,966.77, 189,072.36 and 83,268.93 is: 114,946.52
Step by Step Solution
- Step 1: Write the proportion equation
136,966.77 : 189,072.36 = 83,268.93 : x - Step 2: Convert to fraction form
136,966.77/189,072.36 = 83,268.93/x - Step 3: Cross multiply
136,966.77x = 189,072.36 × 83,268.93 - Step 4: Simplify right side
136,966.77x = 15,743,853,109.77 - Step 5: Solve for x
x = 15,743,853,109.77/136,966.77 - Step 6: Final answer
x = 114,946.52
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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.