Finding the Fourth Proportional to 99,135.33, 136,806.87 and 53,813.28
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Solution
The fourth proportional to 99,135.33, 136,806.87 and 53,813.28 is: 74,262.39
Step by Step Solution
- Step 1: Write the proportion equation
99,135.33 : 136,806.87 = 53,813.28 : x - Step 2: Convert to fraction form
99,135.33/136,806.87 = 53,813.28/x - Step 3: Cross multiply
99,135.33x = 136,806.87 × 53,813.28 - Step 4: Simplify right side
99,135.33x = 7,362,026,401.23 - Step 5: Solve for x
x = 7,362,026,401.23/99,135.33 - Step 6: Final answer
x = 74,262.39
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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.