Finding the Fourth Proportional to 125,358.03, 172,991.12 and 68,768.91
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Solution
The fourth proportional to 125,358.03, 172,991.12 and 68,768.91 is: 94,899.47
Step by Step Solution
- Step 1: Write the proportion equation
125,358.03 : 172,991.12 = 68,768.91 : x - Step 2: Convert to fraction form
125,358.03/172,991.12 = 68,768.91/x - Step 3: Cross multiply
125,358.03x = 172,991.12 × 68,768.91 - Step 4: Simplify right side
125,358.03x = 11,896,410,418.23 - Step 5: Solve for x
x = 11,896,410,418.23/125,358.03 - Step 6: Final answer
x = 94,899.47
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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.