Finding the Fourth Proportional to 146,720.31, 202,478.84 and 83,056.74
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Solution
The fourth proportional to 146,720.31, 202,478.84 and 83,056.74 is: 114,621.03
Step by Step Solution
- Step 1: Write the proportion equation
146,720.31 : 202,478.84 = 83,056.74 : x - Step 2: Convert to fraction form
146,720.31/202,478.84 = 83,056.74/x - Step 3: Cross multiply
146,720.31x = 202,478.84 × 83,056.74 - Step 4: Simplify right side
146,720.31x = 16,817,232,369.38 - Step 5: Solve for x
x = 16,817,232,369.38/146,720.31 - Step 6: Final answer
x = 114,621.03
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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.