Finding the Fourth Proportional to 122,862.98, 169,532.63 and 69,144.80
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Solution
The fourth proportional to 122,862.98, 169,532.63 and 69,144.80 is: 95,409.53
Step by Step Solution
- Step 1: Write the proportion equation
122,862.98 : 169,532.63 = 69,144.80 : x - Step 2: Convert to fraction form
122,862.98/169,532.63 = 69,144.80/x - Step 3: Cross multiply
122,862.98x = 169,532.63 × 69,144.80 - Step 4: Simplify right side
122,862.98x = 11,722,298,860.73 - Step 5: Solve for x
x = 11,722,298,860.73/122,862.98 - Step 6: Final answer
x = 95,409.53
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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.