Finding the Fourth Proportional to 161,708.70, 243,000.45 and 142,463.10
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Solution
The fourth proportional to 161,708.70, 243,000.45 and 142,463.10 is: 214,079.99
Step by Step Solution
- Step 1: Write the proportion equation
161,708.70 : 243,000.45 = 142,463.10 : x - Step 2: Convert to fraction form
161,708.70/243,000.45 = 142,463.10/x - Step 3: Cross multiply
161,708.70x = 243,000.45 × 142,463.10 - Step 4: Simplify right side
161,708.70x = 34,618,597,408.40 - Step 5: Solve for x
x = 34,618,597,408.40/161,708.70 - Step 6: Final answer
x = 214,079.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.