Finding the Fourth Proportional to 101,971.36, 140,771.64 and 63,752.14
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Solution
The fourth proportional to 101,971.36, 140,771.64 and 63,752.14 is: 88,009.94
Step by Step Solution
- Step 1: Write the proportion equation
101,971.36 : 140,771.64 = 63,752.14 : x - Step 2: Convert to fraction form
101,971.36/140,771.64 = 63,752.14/x - Step 3: Cross multiply
101,971.36x = 140,771.64 × 63,752.14 - Step 4: Simplify right side
101,971.36x = 8,974,493,301.31 - Step 5: Solve for x
x = 8,974,493,301.31/101,971.36 - Step 6: Final answer
x = 88,009.94
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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.