Finding the Fourth Proportional to 136,727.74, 205,112.12 and 47,965.62
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Solution
The fourth proportional to 136,727.74, 205,112.12 and 47,965.62 is: 71,955.63
Step by Step Solution
- Step 1: Write the proportion equation
136,727.74 : 205,112.12 = 47,965.62 : x - Step 2: Convert to fraction form
136,727.74/205,112.12 = 47,965.62/x - Step 3: Cross multiply
136,727.74x = 205,112.12 × 47,965.62 - Step 4: Simplify right side
136,727.74x = 9,838,330,005.31 - Step 5: Solve for x
x = 9,838,330,005.31/136,727.74 - Step 6: Final answer
x = 71,955.63
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1.5x scale
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.