Finding the Fourth Proportional to 133,245.28, 183,897.24 and 84,831.74
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Solution
The fourth proportional to 133,245.28, 183,897.24 and 84,831.74 is: 117,079.74
Step by Step Solution
- Step 1: Write the proportion equation
133,245.28 : 183,897.24 = 84,831.74 : x - Step 2: Convert to fraction form
133,245.28/183,897.24 = 84,831.74/x - Step 3: Cross multiply
133,245.28x = 183,897.24 × 84,831.74 - Step 4: Simplify right side
133,245.28x = 15,600,322,426.24 - Step 5: Solve for x
x = 15,600,322,426.24/133,245.28 - Step 6: Final answer
x = 117,079.74
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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.