Finding the Fourth Proportional to 137,936.44, 190,369.88 and 84,209.95
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Solution
The fourth proportional to 137,936.44, 190,369.88 and 84,209.95 is: 116,220.47
Step by Step Solution
- Step 1: Write the proportion equation
137,936.44 : 190,369.88 = 84,209.95 : x - Step 2: Convert to fraction form
137,936.44/190,369.88 = 84,209.95/x - Step 3: Cross multiply
137,936.44x = 190,369.88 × 84,209.95 - Step 4: Simplify right side
137,936.44x = 16,031,038,076.31 - Step 5: Solve for x
x = 16,031,038,076.31/137,936.44 - Step 6: Final answer
x = 116,220.47
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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.