Finding the Fourth Proportional to 122,750.63, 169,397.69 and 74,993.84
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Solution
The fourth proportional to 122,750.63, 169,397.69 and 74,993.84 is: 103,492.61
Step by Step Solution
- Step 1: Write the proportion equation
122,750.63 : 169,397.69 = 74,993.84 : x - Step 2: Convert to fraction form
122,750.63/169,397.69 = 74,993.84/x - Step 3: Cross multiply
122,750.63x = 169,397.69 × 74,993.84 - Step 4: Simplify right side
122,750.63x = 12,703,782,038.27 - Step 5: Solve for x
x = 12,703,782,038.27/122,750.63 - Step 6: Final answer
x = 103,492.61
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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.