Finding the Fourth Proportional to 108,245.40, 149,281.84 and 67,962.88
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Solution
The fourth proportional to 108,245.40, 149,281.84 and 67,962.88 is: 93,727.99
Step by Step Solution
- Step 1: Write the proportion equation
108,245.40 : 149,281.84 = 67,962.88 : x - Step 2: Convert to fraction form
108,245.40/149,281.84 = 67,962.88/x - Step 3: Cross multiply
108,245.40x = 149,281.84 × 67,962.88 - Step 4: Simplify right side
108,245.40x = 10,145,623,778.10 - Step 5: Solve for x
x = 10,145,623,778.10/108,245.40 - Step 6: Final answer
x = 93,727.99
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1.5x scale
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.