Finding the Fourth Proportional to 122,174.63, 168,605.55 and 68,457.66
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Solution
The fourth proportional to 122,174.63, 168,605.55 and 68,457.66 is: 94,474.12
Step by Step Solution
- Step 1: Write the proportion equation
122,174.63 : 168,605.55 = 68,457.66 : x - Step 2: Convert to fraction form
122,174.63/168,605.55 = 68,457.66/x - Step 3: Cross multiply
122,174.63x = 168,605.55 × 68,457.66 - Step 4: Simplify right side
122,174.63x = 11,542,340,783.74 - Step 5: Solve for x
x = 11,542,340,783.74/122,174.63 - Step 6: Final answer
x = 94,474.12
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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.