Finding the Fourth Proportional to 110,981.75, 153,117.33 and 63,201.26
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Solution
The fourth proportional to 110,981.75, 153,117.33 and 63,201.26 is: 87,196.39
Step by Step Solution
- Step 1: Write the proportion equation
110,981.75 : 153,117.33 = 63,201.26 : x - Step 2: Convert to fraction form
110,981.75/153,117.33 = 63,201.26/x - Step 3: Cross multiply
110,981.75x = 153,117.33 × 63,201.26 - Step 4: Simplify right side
110,981.75x = 9,677,207,418.25 - Step 5: Solve for x
x = 9,677,207,418.25/110,981.75 - Step 6: Final answer
x = 87,196.39
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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.