Finding the Fourth Proportional to 135,603.14, 203,378.26 and 99,730.87
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Solution
The fourth proportional to 135,603.14, 203,378.26 and 99,730.87 is: 149,576.85
Step by Step Solution
- Step 1: Write the proportion equation
135,603.14 : 203,378.26 = 99,730.87 : x - Step 2: Convert to fraction form
135,603.14/203,378.26 = 99,730.87/x - Step 3: Cross multiply
135,603.14x = 203,378.26 × 99,730.87 - Step 4: Simplify right side
135,603.14x = 20,283,090,808.89 - Step 5: Solve for x
x = 20,283,090,808.89/135,603.14 - Step 6: Final answer
x = 149,576.85
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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.