Finding the Fourth Proportional to 122,589.05, 183,869.90 and 42,613.19
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Solution
The fourth proportional to 122,589.05, 183,869.90 and 42,613.19 is: 63,915.02
Step by Step Solution
- Step 1: Write the proportion equation
122,589.05 : 183,869.90 = 42,613.19 : x - Step 2: Convert to fraction form
122,589.05/183,869.90 = 42,613.19/x - Step 3: Cross multiply
122,589.05x = 183,869.90 × 42,613.19 - Step 4: Simplify right side
122,589.05x = 7,835,281,851.57 - Step 5: Solve for x
x = 7,835,281,851.57/122,589.05 - Step 6: Final answer
x = 63,915.02
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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.