Finding the Fourth Proportional to 126,972.36, 190,471.30 and 47,031.84
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Solution
The fourth proportional to 126,972.36, 190,471.30 and 47,031.84 is: 70,552.49
Step by Step Solution
- Step 1: Write the proportion equation
126,972.36 : 190,471.30 = 47,031.84 : x - Step 2: Convert to fraction form
126,972.36/190,471.30 = 47,031.84/x - Step 3: Cross multiply
126,972.36x = 190,471.30 × 47,031.84 - Step 4: Simplify right side
126,972.36x = 8,958,215,588.61 - Step 5: Solve for x
x = 8,958,215,588.61/126,972.36 - Step 6: Final answer
x = 70,552.49
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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.