Finding the Fourth Proportional to 145,978.62, 201,450.63 and 85,537.23
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Solution
The fourth proportional to 145,978.62, 201,450.63 and 85,537.23 is: 118,041.46
Step by Step Solution
- Step 1: Write the proportion equation
145,978.62 : 201,450.63 = 85,537.23 : x - Step 2: Convert to fraction form
145,978.62/201,450.63 = 85,537.23/x - Step 3: Cross multiply
145,978.62x = 201,450.63 × 85,537.23 - Step 4: Simplify right side
145,978.62x = 17,231,528,871.95 - Step 5: Solve for x
x = 17,231,528,871.95/145,978.62 - Step 6: Final answer
x = 118,041.46
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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.