Finding the Fourth Proportional to 143,027.07, 197,379.48 and 79,368.96
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Solution
The fourth proportional to 143,027.07, 197,379.48 and 79,368.96 is: 109,530.35
Step by Step Solution
- Step 1: Write the proportion equation
143,027.07 : 197,379.48 = 79,368.96 : x - Step 2: Convert to fraction form
143,027.07/197,379.48 = 79,368.96/x - Step 3: Cross multiply
143,027.07x = 197,379.48 × 79,368.96 - Step 4: Simplify right side
143,027.07x = 15,665,805,090.75 - Step 5: Solve for x
x = 15,665,805,090.75/143,027.07 - Step 6: Final answer
x = 109,530.35
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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.