Finding the Fourth Proportional to 135,420.59, 203,149.80 and 56,516.75
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Solution
The fourth proportional to 135,420.59, 203,149.80 and 56,516.75 is: 84,783.02
Step by Step Solution
- Step 1: Write the proportion equation
135,420.59 : 203,149.80 = 56,516.75 : x - Step 2: Convert to fraction form
135,420.59/203,149.80 = 56,516.75/x - Step 3: Cross multiply
135,420.59x = 203,149.80 × 56,516.75 - Step 4: Simplify right side
135,420.59x = 11,481,366,459.15 - Step 5: Solve for x
x = 11,481,366,459.15/135,420.59 - Step 6: Final answer
x = 84,783.02
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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.