Finding the Fourth Proportional to 105,825.80, 158,800.68 and 39,311.96
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Solution
The fourth proportional to 105,825.80, 158,800.68 and 39,311.96 is: 58,990.96
Step by Step Solution
- Step 1: Write the proportion equation
105,825.80 : 158,800.68 = 39,311.96 : x - Step 2: Convert to fraction form
105,825.80/158,800.68 = 39,311.96/x - Step 3: Cross multiply
105,825.80x = 158,800.68 × 39,311.96 - Step 4: Simplify right side
105,825.80x = 6,242,765,980.13 - Step 5: Solve for x
x = 6,242,765,980.13/105,825.80 - Step 6: Final answer
x = 58,990.96
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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.