Finding the Fourth Proportional to 98,440.11, 135,774.84 and 74,242.09
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Solution
The fourth proportional to 98,440.11, 135,774.84 and 74,242.09 is: 102,399.39
Step by Step Solution
- Step 1: Write the proportion equation
98,440.11 : 135,774.84 = 74,242.09 : x - Step 2: Convert to fraction form
98,440.11/135,774.84 = 74,242.09/x - Step 3: Cross multiply
98,440.11x = 135,774.84 × 74,242.09 - Step 4: Simplify right side
98,440.11x = 10,080,207,273.17 - Step 5: Solve for x
x = 10,080,207,273.17/98,440.11 - Step 6: Final answer
x = 102,399.39
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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.