Finding the Fourth Proportional to 122,893.79, 169,592.99 and 69,178.95
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Solution
The fourth proportional to 122,893.79, 169,592.99 and 69,178.95 is: 95,466.70
Step by Step Solution
- Step 1: Write the proportion equation
122,893.79 : 169,592.99 = 69,178.95 : x - Step 2: Convert to fraction form
122,893.79/169,592.99 = 69,178.95/x - Step 3: Cross multiply
122,893.79x = 169,592.99 × 69,178.95 - Step 4: Simplify right side
122,893.79x = 11,732,264,629.67 - Step 5: Solve for x
x = 11,732,264,629.67/122,893.79 - Step 6: Final answer
x = 95,466.70
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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.