Finding the Fourth Proportional to 157,203.63, 216,905.58 and 131,812.56
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Solution
The fourth proportional to 157,203.63, 216,905.58 and 131,812.56 is: 181,871.63
Step by Step Solution
- Step 1: Write the proportion equation
157,203.63 : 216,905.58 = 131,812.56 : x - Step 2: Convert to fraction form
157,203.63/216,905.58 = 131,812.56/x - Step 3: Cross multiply
157,203.63x = 216,905.58 × 131,812.56 - Step 4: Simplify right side
157,203.63x = 28,590,879,778.08 - Step 5: Solve for x
x = 28,590,879,778.08/157,203.63 - Step 6: Final answer
x = 181,871.63
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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.