Finding the Fourth Proportional to 102,430.68, 141,472.04 and 68,379.88
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Solution
The fourth proportional to 102,430.68, 141,472.04 and 68,379.88 is: 94,442.81
Step by Step Solution
- Step 1: Write the proportion equation
102,430.68 : 141,472.04 = 68,379.88 : x - Step 2: Convert to fraction form
102,430.68/141,472.04 = 68,379.88/x - Step 3: Cross multiply
102,430.68x = 141,472.04 × 68,379.88 - Step 4: Simplify right side
102,430.68x = 9,673,841,118.56 - Step 5: Solve for x
x = 9,673,841,118.56/102,430.68 - Step 6: Final answer
x = 94,442.81
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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.