Finding the Fourth Proportional to 84,657.11, 127,001.21 and 69,001.02
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Solution
The fourth proportional to 84,657.11, 127,001.21 and 69,001.02 is: 103,514.20
Step by Step Solution
- Step 1: Write the proportion equation
84,657.11 : 127,001.21 = 69,001.02 : x - Step 2: Convert to fraction form
84,657.11/127,001.21 = 69,001.02/x - Step 3: Cross multiply
84,657.11x = 127,001.21 × 69,001.02 - Step 4: Simplify right side
84,657.11x = 8,763,212,686.23 - Step 5: Solve for x
x = 8,763,212,686.23/84,657.11 - Step 6: Final answer
x = 103,514.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.