Finding the Fourth Proportional to 195,698.46, 270,064.95 and 115,129.02
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Solution
The fourth proportional to 195,698.46, 270,064.95 and 115,129.02 is: 158,878.68
Step by Step Solution
- Step 1: Write the proportion equation
195,698.46 : 270,064.95 = 115,129.02 : x - Step 2: Convert to fraction form
195,698.46/270,064.95 = 115,129.02/x - Step 3: Cross multiply
195,698.46x = 270,064.95 × 115,129.02 - Step 4: Simplify right side
195,698.46x = 31,092,313,029.85 - Step 5: Solve for x
x = 31,092,313,029.85/195,698.46 - Step 6: Final answer
x = 158,878.68
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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.