Finding the Fourth Proportional to 189,693.69, 261,831.84 and 125,210.00
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Solution
The fourth proportional to 189,693.69, 261,831.84 and 125,210.00 is: 172,825.80
Step by Step Solution
- Step 1: Write the proportion equation
189,693.69 : 261,831.84 = 125,210.00 : x - Step 2: Convert to fraction form
189,693.69/261,831.84 = 125,210.00/x - Step 3: Cross multiply
189,693.69x = 261,831.84 × 125,210.00 - Step 4: Simplify right side
189,693.69x = 32,783,963,377.24 - Step 5: Solve for x
x = 32,783,963,377.24/189,693.69 - Step 6: Final answer
x = 172,825.80
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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.