Finding the Fourth Proportional to 131,201.28, 181,059.84 and 71,585.28
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Solution
The fourth proportional to 131,201.28, 181,059.84 and 71,585.28 is: 98,788.82
Step by Step Solution
- Step 1: Write the proportion equation
131,201.28 : 181,059.84 = 71,585.28 : x - Step 2: Convert to fraction form
131,201.28/181,059.84 = 71,585.28/x - Step 3: Cross multiply
131,201.28x = 181,059.84 × 71,585.28 - Step 4: Simplify right side
131,201.28x = 12,961,219,343.16 - Step 5: Solve for x
x = 12,961,219,343.16/131,201.28 - Step 6: Final answer
x = 98,788.82
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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.