Finding the Fourth Proportional to 145,869.99, 218,785.54 and 40,680.15
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Solution
The fourth proportional to 145,869.99, 218,785.54 and 40,680.15 is: 61,014.80
Step by Step Solution
- Step 1: Write the proportion equation
145,869.99 : 218,785.54 = 40,680.15 : x - Step 2: Convert to fraction form
145,869.99/218,785.54 = 40,680.15/x - Step 3: Cross multiply
145,869.99x = 218,785.54 × 40,680.15 - Step 4: Simplify right side
145,869.99x = 8,900,228,585.03 - Step 5: Solve for x
x = 8,900,228,585.03/145,869.99 - Step 6: Final answer
x = 61,014.80
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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.