Finding the Fourth Proportional to 118,703.16, 163,812.42 and 73,380.02
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Solution
The fourth proportional to 118,703.16, 163,812.42 and 73,380.02 is: 101,265.69
Step by Step Solution
- Step 1: Write the proportion equation
118,703.16 : 163,812.42 = 73,380.02 : x - Step 2: Convert to fraction form
118,703.16/163,812.42 = 73,380.02/x - Step 3: Cross multiply
118,703.16x = 163,812.42 × 73,380.02 - Step 4: Simplify right side
118,703.16x = 12,020,557,836.79 - Step 5: Solve for x
x = 12,020,557,836.79/118,703.16 - Step 6: Final answer
x = 101,265.69
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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.