Finding the Fourth Proportional to 146,495.32, 202,178.56 and 89,138.68
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Solution
The fourth proportional to 146,495.32, 202,178.56 and 89,138.68 is: 123,020.52
Step by Step Solution
- Step 1: Write the proportion equation
146,495.32 : 202,178.56 = 89,138.68 : x - Step 2: Convert to fraction form
146,495.32/202,178.56 = 89,138.68/x - Step 3: Cross multiply
146,495.32x = 202,178.56 × 89,138.68 - Step 4: Simplify right side
146,495.32x = 18,021,929,962.70 - Step 5: Solve for x
x = 18,021,929,962.70/146,495.32 - Step 6: Final answer
x = 123,020.52
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1.5x scale
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.