Finding the Fourth Proportional to 126,358.71, 189,378.90 and 110,526.06
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Solution
The fourth proportional to 126,358.71, 189,378.90 and 110,526.06 is: 165,649.87
Step by Step Solution
- Step 1: Write the proportion equation
126,358.71 : 189,378.90 = 110,526.06 : x - Step 2: Convert to fraction form
126,358.71/189,378.90 = 110,526.06/x - Step 3: Cross multiply
126,358.71x = 189,378.90 × 110,526.06 - Step 4: Simplify right side
126,358.71x = 20,931,303,664.13 - Step 5: Solve for x
x = 20,931,303,664.13/126,358.71 - Step 6: Final answer
x = 165,649.87
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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.