Finding the Fourth Proportional to 122,246.68, 168,698.76 and 68,531.56
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Solution
The fourth proportional to 122,246.68, 168,698.76 and 68,531.56 is: 94,572.62
Step by Step Solution
- Step 1: Write the proportion equation
122,246.68 : 168,698.76 = 68,531.56 : x - Step 2: Convert to fraction form
122,246.68/168,698.76 = 68,531.56/x - Step 3: Cross multiply
122,246.68x = 168,698.76 × 68,531.56 - Step 4: Simplify right side
122,246.68x = 11,561,189,192.87 - Step 5: Solve for x
x = 11,561,189,192.87/122,246.68 - Step 6: Final answer
x = 94,572.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.