Finding the Fourth Proportional to 146,039.63, 201,534.69 and 78,971.63
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Solution
The fourth proportional to 146,039.63, 201,534.69 and 78,971.63 is: 108,980.85
Step by Step Solution
- Step 1: Write the proportion equation
146,039.63 : 201,534.69 = 78,971.63 : x - Step 2: Convert to fraction form
146,039.63/201,534.69 = 78,971.63/x - Step 3: Cross multiply
146,039.63x = 201,534.69 × 78,971.63 - Step 4: Simplify right side
146,039.63x = 15,915,521,963.17 - Step 5: Solve for x
x = 15,915,521,963.17/146,039.63 - Step 6: Final answer
x = 108,980.85
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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.