Finding the Fourth Proportional to 112,686.75, 155,512.58 and 62,385.75
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Solution
The fourth proportional to 112,686.75, 155,512.58 and 62,385.75 is: 86,095.03
Step by Step Solution
- Step 1: Write the proportion equation
112,686.75 : 155,512.58 = 62,385.75 : x - Step 2: Convert to fraction form
112,686.75/155,512.58 = 62,385.75/x - Step 3: Cross multiply
112,686.75x = 155,512.58 × 62,385.75 - Step 4: Simplify right side
112,686.75x = 9,701,768,625.81 - Step 5: Solve for x
x = 9,701,768,625.81/112,686.75 - Step 6: Final answer
x = 86,095.03
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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.