Finding the Fourth Proportional to 127,862.44, 191,786.70 and 39,115.95
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Solution
The fourth proportional to 127,862.44, 191,786.70 and 39,115.95 is: 58,671.80
Step by Step Solution
- Step 1: Write the proportion equation
127,862.44 : 191,786.70 = 39,115.95 : x - Step 2: Convert to fraction form
127,862.44/191,786.70 = 39,115.95/x - Step 3: Cross multiply
127,862.44x = 191,786.70 × 39,115.95 - Step 4: Simplify right side
127,862.44x = 7,501,918,967.87 - Step 5: Solve for x
x = 7,501,918,967.87/127,862.44 - Step 6: Final answer
x = 58,671.80
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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.