Finding the Fourth Proportional to 108,366.71, 149,606.15 and 74,395.31
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Solution
The fourth proportional to 108,366.71, 149,606.15 and 74,395.31 is: 102,706.77
Step by Step Solution
- Step 1: Write the proportion equation
108,366.71 : 149,606.15 = 74,395.31 : x - Step 2: Convert to fraction form
108,366.71/149,606.15 = 74,395.31/x - Step 3: Cross multiply
108,366.71x = 149,606.15 × 74,395.31 - Step 4: Simplify right side
108,366.71x = 11,129,994,787.15 - Step 5: Solve for x
x = 11,129,994,787.15/108,366.71 - Step 6: Final answer
x = 102,706.77
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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.