Finding the Fourth Proportional to 128,855.71, 193,237.25 and 44,592.99
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Solution
The fourth proportional to 128,855.71, 193,237.25 and 44,592.99 is: 66,873.46
Step by Step Solution
- Step 1: Write the proportion equation
128,855.71 : 193,237.25 = 44,592.99 : x - Step 2: Convert to fraction form
128,855.71/193,237.25 = 44,592.99/x - Step 3: Cross multiply
128,855.71x = 193,237.25 × 44,592.99 - Step 4: Simplify right side
128,855.71x = 8,617,026,756.88 - Step 5: Solve for x
x = 8,617,026,756.88/128,855.71 - Step 6: Final answer
x = 66,873.46
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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.