Finding the Fourth Proportional to 105,571.28, 158,362.36 and 26,686.18
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Solution
The fourth proportional to 105,571.28, 158,362.36 and 26,686.18 is: 40,030.65
Step by Step Solution
- Step 1: Write the proportion equation
105,571.28 : 158,362.36 = 26,686.18 : x - Step 2: Convert to fraction form
105,571.28/158,362.36 = 26,686.18/x - Step 3: Cross multiply
105,571.28x = 158,362.36 × 26,686.18 - Step 4: Simplify right side
105,571.28x = 4,226,086,444.18 - Step 5: Solve for x
x = 4,226,086,444.18/105,571.28 - Step 6: Final answer
x = 40,030.65
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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.