Finding the Fourth Proportional to 115,253.96, 158,951.03 and 74,953.08
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Solution
The fourth proportional to 115,253.96, 158,951.03 and 74,953.08 is: 103,370.59
Step by Step Solution
- Step 1: Write the proportion equation
115,253.96 : 158,951.03 = 74,953.08 : x - Step 2: Convert to fraction form
115,253.96/158,951.03 = 74,953.08/x - Step 3: Cross multiply
115,253.96x = 158,951.03 × 74,953.08 - Step 4: Simplify right side
115,253.96x = 11,913,868,892.91 - Step 5: Solve for x
x = 11,913,868,892.91/115,253.96 - Step 6: Final answer
x = 103,370.59
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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.