Finding the Fourth Proportional to 115,973.57, 160,028.58 and 68,209.49
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Solution
The fourth proportional to 115,973.57, 160,028.58 and 68,209.49 is: 94,120.31
Step by Step Solution
- Step 1: Write the proportion equation
115,973.57 : 160,028.58 = 68,209.49 : x - Step 2: Convert to fraction form
115,973.57/160,028.58 = 68,209.49/x - Step 3: Cross multiply
115,973.57x = 160,028.58 × 68,209.49 - Step 4: Simplify right side
115,973.57x = 10,915,467,827.22 - Step 5: Solve for x
x = 10,915,467,827.22/115,973.57 - Step 6: Final answer
x = 94,120.31
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1.5x scale
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.