Finding the Fourth Proportional to 106,346.16, 159,574.86 and 68,896.62
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Solution
The fourth proportional to 106,346.16, 159,574.86 and 68,896.62 is: 103,380.96
Step by Step Solution
- Step 1: Write the proportion equation
106,346.16 : 159,574.86 = 68,896.62 : x - Step 2: Convert to fraction form
106,346.16/159,574.86 = 68,896.62/x - Step 3: Cross multiply
106,346.16x = 159,574.86 × 68,896.62 - Step 4: Simplify right side
106,346.16x = 10,994,168,490.97 - Step 5: Solve for x
x = 10,994,168,490.97/106,346.16 - Step 6: Final answer
x = 103,380.96
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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.