Finding the Fourth Proportional to 104,922.06, 144,814.80 and 69,115.20
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Solution
The fourth proportional to 104,922.06, 144,814.80 and 69,115.20 is: 95,393.70
Step by Step Solution
- Step 1: Write the proportion equation
104,922.06 : 144,814.80 = 69,115.20 : x - Step 2: Convert to fraction form
104,922.06/144,814.80 = 69,115.20/x - Step 3: Cross multiply
104,922.06x = 144,814.80 × 69,115.20 - Step 4: Simplify right side
104,922.06x = 10,008,903,864.96 - Step 5: Solve for x
x = 10,008,903,864.96/104,922.06 - Step 6: Final answer
x = 95,393.70
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1.5x scale
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.