Finding the Fourth Proportional to 96,321.80, 144,482.70 and 84,657.80
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Solution
The fourth proportional to 96,321.80, 144,482.70 and 84,657.80 is: 126,986.70
Step by Step Solution
- Step 1: Write the proportion equation
96,321.80 : 144,482.70 = 84,657.80 : x - Step 2: Convert to fraction form
96,321.80/144,482.70 = 84,657.80/x - Step 3: Cross multiply
96,321.80x = 144,482.70 × 84,657.80 - Step 4: Simplify right side
96,321.80x = 12,231,587,520.06 - Step 5: Solve for x
x = 12,231,587,520.06/96,321.80 - Step 6: Final answer
x = 126,986.70
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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.