Finding the Fourth Proportional to 139,905.97, 192,933.06 and 88,830.01
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Solution
The fourth proportional to 139,905.97, 192,933.06 and 88,830.01 is: 122,498.32
Step by Step Solution
- Step 1: Write the proportion equation
139,905.97 : 192,933.06 = 88,830.01 : x - Step 2: Convert to fraction form
139,905.97/192,933.06 = 88,830.01/x - Step 3: Cross multiply
139,905.97x = 192,933.06 × 88,830.01 - Step 4: Simplify right side
139,905.97x = 17,138,245,649.13 - Step 5: Solve for x
x = 17,138,245,649.13/139,905.97 - Step 6: Final answer
x = 122,498.32
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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.