Finding the Fourth Proportional to 102,149.80, 153,224.70 and 49,661.80
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Solution
The fourth proportional to 102,149.80, 153,224.70 and 49,661.80 is: 74,492.70
Step by Step Solution
- Step 1: Write the proportion equation
102,149.80 : 153,224.70 = 49,661.80 : x - Step 2: Convert to fraction form
102,149.80/153,224.70 = 49,661.80/x - Step 3: Cross multiply
102,149.80x = 153,224.70 × 49,661.80 - Step 4: Simplify right side
102,149.80x = 7,609,414,406.46 - Step 5: Solve for x
x = 7,609,414,406.46/102,149.80 - Step 6: Final answer
x = 74,492.70
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1.5x scale
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.