Finding the Fourth Proportional to 134,787.40, 186,006.08 and 74,361.80
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Solution
The fourth proportional to 134,787.40, 186,006.08 and 74,361.80 is: 102,618.99
Step by Step Solution
- Step 1: Write the proportion equation
134,787.40 : 186,006.08 = 74,361.80 : x - Step 2: Convert to fraction form
134,787.40/186,006.08 = 74,361.80/x - Step 3: Cross multiply
134,787.40x = 186,006.08 × 74,361.80 - Step 4: Simplify right side
134,787.40x = 13,831,746,919.74 - Step 5: Solve for x
x = 13,831,746,919.74/134,787.40 - Step 6: Final answer
x = 102,618.99
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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.