Finding the Fourth Proportional to 135,246.93, 186,639.17 and 74,812.83
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Solution
The fourth proportional to 135,246.93, 186,639.17 and 74,812.83 is: 103,240.82
Step by Step Solution
- Step 1: Write the proportion equation
135,246.93 : 186,639.17 = 74,812.83 : x - Step 2: Convert to fraction form
135,246.93/186,639.17 = 74,812.83/x - Step 3: Cross multiply
135,246.93x = 186,639.17 × 74,812.83 - Step 4: Simplify right side
135,246.93x = 13,963,004,122.49 - Step 5: Solve for x
x = 13,963,004,122.49/135,246.93 - Step 6: Final answer
x = 103,240.82
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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.