Finding the Fourth Proportional to 125,221.73, 172,832.09 and 115,134.18
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Solution
The fourth proportional to 125,221.73, 172,832.09 and 115,134.18 is: 158,909.17
Step by Step Solution
- Step 1: Write the proportion equation
125,221.73 : 172,832.09 = 115,134.18 : x - Step 2: Convert to fraction form
125,221.73/172,832.09 = 115,134.18/x - Step 3: Cross multiply
125,221.73x = 172,832.09 × 115,134.18 - Step 4: Simplify right side
125,221.73x = 19,898,880,384.17 - Step 5: Solve for x
x = 19,898,880,384.17/125,221.73 - Step 6: Final answer
x = 158,909.17
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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.