Finding the Fourth Proportional to 135,885.29, 203,864.08 and 47,138.65
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Solution
The fourth proportional to 135,885.29, 203,864.08 and 47,138.65 is: 70,720.51
Step by Step Solution
- Step 1: Write the proportion equation
135,885.29 : 203,864.08 = 47,138.65 : x - Step 2: Convert to fraction form
135,885.29/203,864.08 = 47,138.65/x - Step 3: Cross multiply
135,885.29x = 203,864.08 × 47,138.65 - Step 4: Simplify right side
135,885.29x = 9,609,876,259.68 - Step 5: Solve for x
x = 9,609,876,259.68/135,885.29 - Step 6: Final answer
x = 70,720.51
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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.