Finding the Fourth Proportional to 148,784.26, 205,321.62 and 80,800.70
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Solution
The fourth proportional to 148,784.26, 205,321.62 and 80,800.70 is: 111,504.61
Step by Step Solution
- Step 1: Write the proportion equation
148,784.26 : 205,321.62 = 80,800.70 : x - Step 2: Convert to fraction form
148,784.26/205,321.62 = 80,800.70/x - Step 3: Cross multiply
148,784.26x = 205,321.62 × 80,800.70 - Step 4: Simplify right side
148,784.26x = 16,590,130,621.13 - Step 5: Solve for x
x = 16,590,130,621.13/148,784.26 - Step 6: Final answer
x = 111,504.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.