Finding the Fourth Proportional to 134,824.19, 186,057.17 and 74,394.79
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Solution
The fourth proportional to 134,824.19, 186,057.17 and 74,394.79 is: 102,664.69
Step by Step Solution
- Step 1: Write the proportion equation
134,824.19 : 186,057.17 = 74,394.79 : x - Step 2: Convert to fraction form
134,824.19/186,057.17 = 74,394.79/x - Step 3: Cross multiply
134,824.19x = 186,057.17 × 74,394.79 - Step 4: Simplify right side
134,824.19x = 13,841,683,532.01 - Step 5: Solve for x
x = 13,841,683,532.01/134,824.19 - Step 6: Final answer
x = 102,664.69
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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.