Finding the Fourth Proportional to 128,184.65, 176,894.65 and 71,596.03
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Solution
The fourth proportional to 128,184.65, 176,894.65 and 71,596.03 is: 98,802.43
Step by Step Solution
- Step 1: Write the proportion equation
128,184.65 : 176,894.65 = 71,596.03 : x - Step 2: Convert to fraction form
128,184.65/176,894.65 = 71,596.03/x - Step 3: Cross multiply
128,184.65x = 176,894.65 × 71,596.03 - Step 4: Simplify right side
128,184.65x = 12,664,954,668.24 - Step 5: Solve for x
x = 12,664,954,668.24/128,184.65 - Step 6: Final answer
x = 98,802.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.