Finding the Fourth Proportional to 132,902.11, 183,409.34 and 72,476.06
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Solution
The fourth proportional to 132,902.11, 183,409.34 and 72,476.06 is: 100,019.38
Step by Step Solution
- Step 1: Write the proportion equation
132,902.11 : 183,409.34 = 72,476.06 : x - Step 2: Convert to fraction form
132,902.11/183,409.34 = 72,476.06/x - Step 3: Cross multiply
132,902.11x = 183,409.34 × 72,476.06 - Step 4: Simplify right side
132,902.11x = 13,292,785,895.91 - Step 5: Solve for x
x = 13,292,785,895.91/132,902.11 - Step 6: Final answer
x = 100,019.38
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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.