Finding the Fourth Proportional to 126,024.08, 189,062.04 and 86,599.76
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Solution
The fourth proportional to 126,024.08, 189,062.04 and 86,599.76 is: 129,917.45
Step by Step Solution
- Step 1: Write the proportion equation
126,024.08 : 189,062.04 = 86,599.76 : x - Step 2: Convert to fraction form
126,024.08/189,062.04 = 86,599.76/x - Step 3: Cross multiply
126,024.08x = 189,062.04 × 86,599.76 - Step 4: Simplify right side
126,024.08x = 16,372,727,289.11 - Step 5: Solve for x
x = 16,372,727,289.11/126,024.08 - Step 6: Final answer
x = 129,917.45
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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.