Finding the Fourth Proportional to 143,160.48, 197,565.84 and 79,506.72
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Solution
The fourth proportional to 143,160.48, 197,565.84 and 79,506.72 is: 109,721.70
Step by Step Solution
- Step 1: Write the proportion equation
143,160.48 : 197,565.84 = 79,506.72 : x - Step 2: Convert to fraction form
143,160.48/197,565.84 = 79,506.72/x - Step 3: Cross multiply
143,160.48x = 197,565.84 × 79,506.72 - Step 4: Simplify right side
143,160.48x = 15,707,811,922.44 - Step 5: Solve for x
x = 15,707,811,922.44/143,160.48 - Step 6: Final answer
x = 109,721.70
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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.