Finding the Fourth Proportional to 98,718.02, 136,234.09 and 54,006.02
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Solution
The fourth proportional to 98,718.02, 136,234.09 and 54,006.02 is: 74,530.07
Step by Step Solution
- Step 1: Write the proportion equation
98,718.02 : 136,234.09 = 54,006.02 : x - Step 2: Convert to fraction form
98,718.02/136,234.09 = 54,006.02/x - Step 3: Cross multiply
98,718.02x = 136,234.09 × 54,006.02 - Step 4: Simplify right side
98,718.02x = 7,357,460,989.22 - Step 5: Solve for x
x = 7,357,460,989.22/98,718.02 - Step 6: Final answer
x = 74,530.07
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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.