Finding the Fourth Proportional to 157,175.24, 216,929.94 and 100,584.68
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Solution
The fourth proportional to 157,175.24, 216,929.94 and 100,584.68 is: 138,824.85
Step by Step Solution
- Step 1: Write the proportion equation
157,175.24 : 216,929.94 = 100,584.68 : x - Step 2: Convert to fraction form
157,175.24/216,929.94 = 100,584.68/x - Step 3: Cross multiply
157,175.24x = 216,929.94 × 100,584.68 - Step 4: Simplify right side
157,175.24x = 21,819,828,597.32 - Step 5: Solve for x
x = 21,819,828,597.32/157,175.24 - Step 6: Final answer
x = 138,824.85
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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.