Finding the Fourth Proportional to 109,854.14, 164,611.62 and 74,175.62
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Solution
The fourth proportional to 109,854.14, 164,611.62 and 74,175.62 is: 111,148.92
Step by Step Solution
- Step 1: Write the proportion equation
109,854.14 : 164,611.62 = 74,175.62 : x - Step 2: Convert to fraction form
109,854.14/164,611.62 = 74,175.62/x - Step 3: Cross multiply
109,854.14x = 164,611.62 × 74,175.62 - Step 4: Simplify right side
109,854.14x = 12,210,168,149.65 - Step 5: Solve for x
x = 12,210,168,149.65/109,854.14 - Step 6: Final answer
x = 111,148.92
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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.