Finding the Fourth Proportional to 122,693.68, 169,313.36 and 68,980.96
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Solution
The fourth proportional to 122,693.68, 169,313.36 and 68,980.96 is: 95,191.52
Step by Step Solution
- Step 1: Write the proportion equation
122,693.68 : 169,313.36 = 68,980.96 : x - Step 2: Convert to fraction form
122,693.68/169,313.36 = 68,980.96/x - Step 3: Cross multiply
122,693.68x = 169,313.36 × 68,980.96 - Step 4: Simplify right side
122,693.68x = 11,679,398,113.63 - Step 5: Solve for x
x = 11,679,398,113.63/122,693.68 - Step 6: Final answer
x = 95,191.52
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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.