Finding the Fourth Proportional to 99,106.54, 136,767.12 and 53,784.53
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Solution
The fourth proportional to 99,106.54, 136,767.12 and 53,784.53 is: 74,222.70
Step by Step Solution
- Step 1: Write the proportion equation
99,106.54 : 136,767.12 = 53,784.53 : x - Step 2: Convert to fraction form
99,106.54/136,767.12 = 53,784.53/x - Step 3: Cross multiply
99,106.54x = 136,767.12 × 53,784.53 - Step 4: Simplify right side
99,106.54x = 7,355,954,896.00 - Step 5: Solve for x
x = 7,355,954,896.00/99,106.54 - Step 6: Final answer
x = 74,222.70
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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.