Finding the Fourth Proportional to 135,289.10, 202,711.99 and 72,042.07
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Solution
The fourth proportional to 135,289.10, 202,711.99 and 72,042.07 is: 107,945.07
Step by Step Solution
- Step 1: Write the proportion equation
135,289.10 : 202,711.99 = 72,042.07 : x - Step 2: Convert to fraction form
135,289.10/202,711.99 = 72,042.07/x - Step 3: Cross multiply
135,289.10x = 202,711.99 × 72,042.07 - Step 4: Simplify right side
135,289.10x = 14,603,791,373.42 - Step 5: Solve for x
x = 14,603,791,373.42/135,289.10 - Step 6: Final answer
x = 107,945.07
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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.