Finding the Fourth Proportional to 115,984.80, 162,028.80 and 115,984.80
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Solution
The fourth proportional to 115,984.80, 162,028.80 and 115,984.80 is: 162,028.80
Step by Step Solution
- Step 1: Write the proportion equation
115,984.80 : 162,028.80 = 115,984.80 : x - Step 2: Convert to fraction form
115,984.80/162,028.80 = 115,984.80/x - Step 3: Cross multiply
115,984.80x = 162,028.80 × 115,984.80 - Step 4: Simplify right side
115,984.80x = 18,792,877,962.24 - Step 5: Solve for x
x = 18,792,877,962.24/115,984.80 - Step 6: Final answer
x = 162,028.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.