Finding the Fourth Proportional to 132,831.27, 183,301.83 and 72,400.62
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Solution
The fourth proportional to 132,831.27, 183,301.83 and 72,400.62 is: 99,909.95
Step by Step Solution
- Step 1: Write the proportion equation
132,831.27 : 183,301.83 = 72,400.62 : x - Step 2: Convert to fraction form
132,831.27/183,301.83 = 72,400.62/x - Step 3: Cross multiply
132,831.27x = 183,301.83 × 72,400.62 - Step 4: Simplify right side
132,831.27x = 13,271,166,139.13 - Step 5: Solve for x
x = 13,271,166,139.13/132,831.27 - Step 6: Final answer
x = 99,909.95
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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.