Finding the Fourth Proportional to 126,588.06, 189,714.42 and 67,296.06
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Solution
The fourth proportional to 126,588.06, 189,714.42 and 67,296.06 is: 100,854.95
Step by Step Solution
- Step 1: Write the proportion equation
126,588.06 : 189,714.42 = 67,296.06 : x - Step 2: Convert to fraction form
126,588.06/189,714.42 = 67,296.06/x - Step 3: Cross multiply
126,588.06x = 189,714.42 × 67,296.06 - Step 4: Simplify right side
126,588.06x = 12,767,032,991.19 - Step 5: Solve for x
x = 12,767,032,991.19/126,588.06 - Step 6: Final answer
x = 100,854.95
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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.