Finding the Fourth Proportional to 98,193.66, 135,501.22 and 57,909.12
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Solution
The fourth proportional to 98,193.66, 135,501.22 and 57,909.12 is: 79,911.03
Step by Step Solution
- Step 1: Write the proportion equation
98,193.66 : 135,501.22 = 57,909.12 : x - Step 2: Convert to fraction form
98,193.66/135,501.22 = 57,909.12/x - Step 3: Cross multiply
98,193.66x = 135,501.22 × 57,909.12 - Step 4: Simplify right side
98,193.66x = 7,846,756,409.13 - Step 5: Solve for x
x = 7,846,756,409.13/98,193.66 - Step 6: Final answer
x = 79,911.03
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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.