Finding the Fourth Proportional to 137,294.36, 189,409.92 and 83,536.28
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Solution
The fourth proportional to 137,294.36, 189,409.92 and 83,536.28 is: 115,245.81
Step by Step Solution
- Step 1: Write the proportion equation
137,294.36 : 189,409.92 = 83,536.28 : x - Step 2: Convert to fraction form
137,294.36/189,409.92 = 83,536.28/x - Step 3: Cross multiply
137,294.36x = 189,409.92 × 83,536.28 - Step 4: Simplify right side
137,294.36x = 15,822,600,111.90 - Step 5: Solve for x
x = 15,822,600,111.90/137,294.36 - Step 6: Final answer
x = 115,245.81
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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.