Finding the Fourth Proportional to 157,817.00, 217,787.45 and 86,197.19
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Solution
The fourth proportional to 157,817.00, 217,787.45 and 86,197.19 is: 118,952.12
Step by Step Solution
- Step 1: Write the proportion equation
157,817.00 : 217,787.45 = 86,197.19 : x - Step 2: Convert to fraction form
157,817.00/217,787.45 = 86,197.19/x - Step 3: Cross multiply
157,817.00x = 217,787.45 × 86,197.19 - Step 4: Simplify right side
157,817.00x = 18,772,666,967.23 - Step 5: Solve for x
x = 18,772,666,967.23/157,817.00 - Step 6: Final answer
x = 118,952.12
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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.