Finding the Fourth Proportional to 145,217.88, 217,852.20 and 66,340.08
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Solution
The fourth proportional to 145,217.88, 217,852.20 and 66,340.08 is: 99,521.71
Step by Step Solution
- Step 1: Write the proportion equation
145,217.88 : 217,852.20 = 66,340.08 : x - Step 2: Convert to fraction form
145,217.88/217,852.20 = 66,340.08/x - Step 3: Cross multiply
145,217.88x = 217,852.20 × 66,340.08 - Step 4: Simplify right side
145,217.88x = 14,452,332,376.18 - Step 5: Solve for x
x = 14,452,332,376.18/145,217.88 - Step 6: Final answer
x = 99,521.71
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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.