Finding the Fourth Proportional to 147,953.10, 203,935.36 and 115,630.62
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Solution
The fourth proportional to 147,953.10, 203,935.36 and 115,630.62 is: 159,382.75
Step by Step Solution
- Step 1: Write the proportion equation
147,953.10 : 203,935.36 = 115,630.62 : x - Step 2: Convert to fraction form
147,953.10/203,935.36 = 115,630.62/x - Step 3: Cross multiply
147,953.10x = 203,935.36 × 115,630.62 - Step 4: Simplify right side
147,953.10x = 23,581,172,116.72 - Step 5: Solve for x
x = 23,581,172,116.72/147,953.10 - Step 6: Final answer
x = 159,382.75
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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.