Finding the Fourth Proportional to 122,882.49, 169,567.02 and 68,430.54
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Solution
The fourth proportional to 122,882.49, 169,567.02 and 68,430.54 is: 94,428.12
Step by Step Solution
- Step 1: Write the proportion equation
122,882.49 : 169,567.02 = 68,430.54 : x - Step 2: Convert to fraction form
122,882.49/169,567.02 = 68,430.54/x - Step 3: Cross multiply
122,882.49x = 169,567.02 × 68,430.54 - Step 4: Simplify right side
122,882.49x = 11,603,562,744.79 - Step 5: Solve for x
x = 11,603,562,744.79/122,882.49 - Step 6: Final answer
x = 94,428.12
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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.