Finding the Fourth Proportional to 99,135.07, 136,802.67 and 53,812.08
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Solution
The fourth proportional to 99,135.07, 136,802.67 and 53,812.08 is: 74,258.64
Step by Step Solution
- Step 1: Write the proportion equation
99,135.07 : 136,802.67 = 53,812.08 : x - Step 2: Convert to fraction form
99,135.07/136,802.67 = 53,812.08/x - Step 3: Cross multiply
99,135.07x = 136,802.67 × 53,812.08 - Step 4: Simplify right side
99,135.07x = 7,361,635,538.24 - Step 5: Solve for x
x = 7,361,635,538.24/99,135.07 - Step 6: Final answer
x = 74,258.64
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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.