Finding the Fourth Proportional to 143,124.67, 197,520.96 and 79,463.53
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Solution
The fourth proportional to 143,124.67, 197,520.96 and 79,463.53 is: 109,664.62
Step by Step Solution
- Step 1: Write the proportion equation
143,124.67 : 197,520.96 = 79,463.53 : x - Step 2: Convert to fraction form
143,124.67/197,520.96 = 79,463.53/x - Step 3: Cross multiply
143,124.67x = 197,520.96 × 79,463.53 - Step 4: Simplify right side
143,124.67x = 15,695,712,730.59 - Step 5: Solve for x
x = 15,695,712,730.59/143,124.67 - Step 6: Final answer
x = 109,664.62
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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.