Finding the Fourth Proportional to 134,916.81, 186,185.46 and 74,487.57
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Solution
The fourth proportional to 134,916.81, 186,185.46 and 74,487.57 is: 102,792.99
Step by Step Solution
- Step 1: Write the proportion equation
134,916.81 : 186,185.46 = 74,487.57 : x - Step 2: Convert to fraction form
134,916.81/186,185.46 = 74,487.57/x - Step 3: Cross multiply
134,916.81x = 186,185.46 × 74,487.57 - Step 4: Simplify right side
134,916.81x = 13,868,502,764.06 - Step 5: Solve for x
x = 13,868,502,764.06/134,916.81 - Step 6: Final answer
x = 102,792.99
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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.