Finding the Fourth Proportional to 126,276.24, 189,358.56 and 47,335.09
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Solution
The fourth proportional to 126,276.24, 189,358.56 and 47,335.09 is: 70,981.72
Step by Step Solution
- Step 1: Write the proportion equation
126,276.24 : 189,358.56 = 47,335.09 : x - Step 2: Convert to fraction form
126,276.24/189,358.56 = 47,335.09/x - Step 3: Cross multiply
126,276.24x = 189,358.56 × 47,335.09 - Step 4: Simplify right side
126,276.24x = 8,963,304,479.87 - Step 5: Solve for x
x = 8,963,304,479.87/126,276.24 - Step 6: Final answer
x = 70,981.72
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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.