Finding the Fourth Proportional to 161,611.99, 242,431.80 and 49,317.46
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Solution
The fourth proportional to 161,611.99, 242,431.80 and 49,317.46 is: 73,980.41
Step by Step Solution
- Step 1: Write the proportion equation
161,611.99 : 242,431.80 = 49,317.46 : x - Step 2: Convert to fraction form
161,611.99/242,431.80 = 49,317.46/x - Step 3: Cross multiply
161,611.99x = 242,431.80 × 49,317.46 - Step 4: Simplify right side
161,611.99x = 11,956,120,599.23 - Step 5: Solve for x
x = 11,956,120,599.23/161,611.99 - Step 6: Final answer
x = 73,980.41
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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.