Finding the Fourth Proportional to 143,178.12, 197,596.44 and 88,740.99
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Solution
The fourth proportional to 143,178.12, 197,596.44 and 88,740.99 is: 122,469.16
Step by Step Solution
- Step 1: Write the proportion equation
143,178.12 : 197,596.44 = 88,740.99 : x - Step 2: Convert to fraction form
143,178.12/197,596.44 = 88,740.99/x - Step 3: Cross multiply
143,178.12x = 197,596.44 × 88,740.99 - Step 4: Simplify right side
143,178.12x = 17,534,903,706.08 - Step 5: Solve for x
x = 17,534,903,706.08/143,178.12 - Step 6: Final answer
x = 122,469.16
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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.