Finding the Fourth Proportional to 143,090.88, 197,475.36 and 82,681.92
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Solution
The fourth proportional to 143,090.88, 197,475.36 and 82,681.92 is: 114,106.80
Step by Step Solution
- Step 1: Write the proportion equation
143,090.88 : 197,475.36 = 82,681.92 : x - Step 2: Convert to fraction form
143,090.88/197,475.36 = 82,681.92/x - Step 3: Cross multiply
143,090.88x = 197,475.36 × 82,681.92 - Step 4: Simplify right side
143,090.88x = 16,327,641,917.49 - Step 5: Solve for x
x = 16,327,641,917.49/143,090.88 - Step 6: Final answer
x = 114,106.80
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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.