Finding the Fourth Proportional to 98,753.14, 136,240.56 and 57,353.09
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Solution
The fourth proportional to 98,753.14, 136,240.56 and 57,353.09 is: 79,124.74
Step by Step Solution
- Step 1: Write the proportion equation
98,753.14 : 136,240.56 = 57,353.09 : x - Step 2: Convert to fraction form
98,753.14/136,240.56 = 57,353.09/x - Step 3: Cross multiply
98,753.14x = 136,240.56 × 57,353.09 - Step 4: Simplify right side
98,753.14x = 7,813,816,131.36 - Step 5: Solve for x
x = 7,813,816,131.36/98,753.14 - Step 6: Final answer
x = 79,124.74
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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.