Finding the Fourth Proportional to 134,878.80, 202,318.20 and 46,135.20
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Solution
The fourth proportional to 134,878.80, 202,318.20 and 46,135.20 is: 69,202.80
Step by Step Solution
- Step 1: Write the proportion equation
134,878.80 : 202,318.20 = 46,135.20 : x - Step 2: Convert to fraction form
134,878.80/202,318.20 = 46,135.20/x - Step 3: Cross multiply
134,878.80x = 202,318.20 × 46,135.20 - Step 4: Simplify right side
134,878.80x = 9,333,990,620.64 - Step 5: Solve for x
x = 9,333,990,620.64/134,878.80 - Step 6: Final answer
x = 69,202.80
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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.