Finding the Fourth Proportional to 99,124.12, 136,786.60 and 53,801.08
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Solution
The fourth proportional to 99,124.12, 136,786.60 and 53,801.08 is: 74,242.95
Step by Step Solution
- Step 1: Write the proportion equation
99,124.12 : 136,786.60 = 53,801.08 : x - Step 2: Convert to fraction form
99,124.12/136,786.60 = 53,801.08/x - Step 3: Cross multiply
99,124.12x = 136,786.60 × 53,801.08 - Step 4: Simplify right side
99,124.12x = 7,359,266,809.53 - Step 5: Solve for x
x = 7,359,266,809.53/99,124.12 - Step 6: Final answer
x = 74,242.95
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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.