Finding the Fourth Proportional to 135,800.70, 187,427.43 and 79,212.03
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Solution
The fourth proportional to 135,800.70, 187,427.43 and 79,212.03 is: 109,325.70
Step by Step Solution
- Step 1: Write the proportion equation
135,800.70 : 187,427.43 = 79,212.03 : x - Step 2: Convert to fraction form
135,800.70/187,427.43 = 79,212.03/x - Step 3: Cross multiply
135,800.70x = 187,427.43 × 79,212.03 - Step 4: Simplify right side
135,800.70x = 14,846,507,207.98 - Step 5: Solve for x
x = 14,846,507,207.98/135,800.70 - Step 6: Final answer
x = 109,325.70
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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.