Finding the Fourth Proportional to 96,329.20, 144,493.80 and 86,487.70
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Solution
The fourth proportional to 96,329.20, 144,493.80 and 86,487.70 is: 129,731.55
Step by Step Solution
- Step 1: Write the proportion equation
96,329.20 : 144,493.80 = 86,487.70 : x - Step 2: Convert to fraction form
96,329.20/144,493.80 = 86,487.70/x - Step 3: Cross multiply
96,329.20x = 144,493.80 × 86,487.70 - Step 4: Simplify right side
96,329.20x = 12,496,936,426.26 - Step 5: Solve for x
x = 12,496,936,426.26/96,329.20 - Step 6: Final answer
x = 129,731.55
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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.