Finding the Fourth Proportional to 130,896.75, 180,638.21 and 73,538.49
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Solution
The fourth proportional to 130,896.75, 180,638.21 and 73,538.49 is: 101,483.50
Step by Step Solution
- Step 1: Write the proportion equation
130,896.75 : 180,638.21 = 73,538.49 : x - Step 2: Convert to fraction form
130,896.75/180,638.21 = 73,538.49/x - Step 3: Cross multiply
130,896.75x = 180,638.21 × 73,538.49 - Step 4: Simplify right side
130,896.75x = 13,283,860,832.01 - Step 5: Solve for x
x = 13,283,860,832.01/130,896.75 - Step 6: Final answer
x = 101,483.50
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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.