Finding the Fourth Proportional to 133,779.12, 184,623.48 and 74,163.12
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Solution
The fourth proportional to 133,779.12, 184,623.48 and 74,163.12 is: 102,349.70
Step by Step Solution
- Step 1: Write the proportion equation
133,779.12 : 184,623.48 = 74,163.12 : x - Step 2: Convert to fraction form
133,779.12/184,623.48 = 74,163.12/x - Step 3: Cross multiply
133,779.12x = 184,623.48 × 74,163.12 - Step 4: Simplify right side
133,779.12x = 13,692,253,302.06 - Step 5: Solve for x
x = 13,692,253,302.06/133,779.12 - Step 6: Final answer
x = 102,349.70
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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.