Finding the Fourth Proportional to 126,065.98, 189,098.97 and 72,838.99
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Solution
The fourth proportional to 126,065.98, 189,098.97 and 72,838.99 is: 109,258.49
Step by Step Solution
- Step 1: Write the proportion equation
126,065.98 : 189,098.97 = 72,838.99 : x - Step 2: Convert to fraction form
126,065.98/189,098.97 = 72,838.99/x - Step 3: Cross multiply
126,065.98x = 189,098.97 × 72,838.99 - Step 4: Simplify right side
126,065.98x = 13,773,777,984.84 - Step 5: Solve for x
x = 13,773,777,984.84/126,065.98 - Step 6: Final answer
x = 109,258.49
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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.