Finding the Fourth Proportional to 140,772.44, 194,266.07 and 77,110.49
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Solution
The fourth proportional to 140,772.44, 194,266.07 and 77,110.49 is: 106,412.53
Step by Step Solution
- Step 1: Write the proportion equation
140,772.44 : 194,266.07 = 77,110.49 : x - Step 2: Convert to fraction form
140,772.44/194,266.07 = 77,110.49/x - Step 3: Cross multiply
140,772.44x = 194,266.07 × 77,110.49 - Step 4: Simplify right side
140,772.44x = 14,979,951,848.07 - Step 5: Solve for x
x = 14,979,951,848.07/140,772.44 - Step 6: Final answer
x = 106,412.53
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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.