Finding the Fourth Proportional to 143,985.36, 198,700.44 and 80,325.84
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Solution
The fourth proportional to 143,985.36, 198,700.44 and 80,325.84 is: 110,850.02
Step by Step Solution
- Step 1: Write the proportion equation
143,985.36 : 198,700.44 = 80,325.84 : x - Step 2: Convert to fraction form
143,985.36/198,700.44 = 80,325.84/x - Step 3: Cross multiply
143,985.36x = 198,700.44 × 80,325.84 - Step 4: Simplify right side
143,985.36x = 15,960,779,751.37 - Step 5: Solve for x
x = 15,960,779,751.37/143,985.36 - Step 6: Final answer
x = 110,850.02
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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.