Finding the Fourth Proportional to 127,979.36, 191,691.98 and 83,471.08
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Solution
The fourth proportional to 127,979.36, 191,691.98 and 83,471.08 is: 125,025.92
Step by Step Solution
- Step 1: Write the proportion equation
127,979.36 : 191,691.98 = 83,471.08 : x - Step 2: Convert to fraction form
127,979.36/191,691.98 = 83,471.08/x - Step 3: Cross multiply
127,979.36x = 191,691.98 × 83,471.08 - Step 4: Simplify right side
127,979.36x = 16,000,736,597.94 - Step 5: Solve for x
x = 16,000,736,597.94/127,979.36 - Step 6: Final answer
x = 125,025.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.