Finding the Fourth Proportional to 143,197.01, 197,606.34 and 79,538.84
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Solution
The fourth proportional to 143,197.01, 197,606.34 and 79,538.84 is: 109,760.52
Step by Step Solution
- Step 1: Write the proportion equation
143,197.01 : 197,606.34 = 79,538.84 : x - Step 2: Convert to fraction form
143,197.01/197,606.34 = 79,538.84/x - Step 3: Cross multiply
143,197.01x = 197,606.34 × 79,538.84 - Step 4: Simplify right side
143,197.01x = 15,717,378,072.21 - Step 5: Solve for x
x = 15,717,378,072.21/143,197.01 - Step 6: Final answer
x = 109,760.52
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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.