Finding the Fourth Proportional to 98,134.18, 135,423.02 and 57,305.32
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Solution
The fourth proportional to 98,134.18, 135,423.02 and 57,305.32 is: 79,080.09
Step by Step Solution
- Step 1: Write the proportion equation
98,134.18 : 135,423.02 = 57,305.32 : x - Step 2: Convert to fraction form
98,134.18/135,423.02 = 57,305.32/x - Step 3: Cross multiply
98,134.18x = 135,423.02 × 57,305.32 - Step 4: Simplify right side
98,134.18x = 7,760,459,496.47 - Step 5: Solve for x
x = 7,760,459,496.47/98,134.18 - Step 6: Final answer
x = 79,080.09
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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.