Finding the Fourth Proportional to 108,478.88, 149,595.68 and 84,596.84
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Solution
The fourth proportional to 108,478.88, 149,595.68 and 84,596.84 is: 116,661.62
Step by Step Solution
- Step 1: Write the proportion equation
108,478.88 : 149,595.68 = 84,596.84 : x - Step 2: Convert to fraction form
108,478.88/149,595.68 = 84,596.84/x - Step 3: Cross multiply
108,478.88x = 149,595.68 × 84,596.84 - Step 4: Simplify right side
108,478.88x = 12,655,321,805.65 - Step 5: Solve for x
x = 12,655,321,805.65/108,478.88 - Step 6: Final answer
x = 116,661.62
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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.