Finding the Fourth Proportional to 103,175.30, 154,762.99 and 68,106.74
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Solution
The fourth proportional to 103,175.30, 154,762.99 and 68,106.74 is: 102,160.14
Step by Step Solution
- Step 1: Write the proportion equation
103,175.30 : 154,762.99 = 68,106.74 : x - Step 2: Convert to fraction form
103,175.30/154,762.99 = 68,106.74/x - Step 3: Cross multiply
103,175.30x = 154,762.99 × 68,106.74 - Step 4: Simplify right side
103,175.30x = 10,540,402,721.55 - Step 5: Solve for x
x = 10,540,402,721.55/103,175.30 - Step 6: Final answer
x = 102,160.14
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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.