Finding the Fourth Proportional to 108,133.12, 149,197.44 and 63,412.48
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Solution
The fourth proportional to 108,133.12, 149,197.44 and 63,412.48 is: 87,493.82
Step by Step Solution
- Step 1: Write the proportion equation
108,133.12 : 149,197.44 = 63,412.48 : x - Step 2: Convert to fraction form
108,133.12/149,197.44 = 63,412.48/x - Step 3: Cross multiply
108,133.12x = 149,197.44 × 63,412.48 - Step 4: Simplify right side
108,133.12x = 9,460,979,680.05 - Step 5: Solve for x
x = 9,460,979,680.05/108,133.12 - Step 6: Final answer
x = 87,493.82
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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.