Finding the Fourth Proportional to 147,356.42, 203,349.12 and 81,949.26
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Solution
The fourth proportional to 147,356.42, 203,349.12 and 81,949.26 is: 113,088.46
Step by Step Solution
- Step 1: Write the proportion equation
147,356.42 : 203,349.12 = 81,949.26 : x - Step 2: Convert to fraction form
147,356.42/203,349.12 = 81,949.26/x - Step 3: Cross multiply
147,356.42x = 203,349.12 × 81,949.26 - Step 4: Simplify right side
147,356.42x = 16,664,309,905.65 - Step 5: Solve for x
x = 16,664,309,905.65/147,356.42 - Step 6: Final answer
x = 113,088.46
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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.