Finding the Fourth Proportional to 156,831.46, 216,403.05 and 93,167.62
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Solution
The fourth proportional to 156,831.46, 216,403.05 and 93,167.62 is: 128,556.84
Step by Step Solution
- Step 1: Write the proportion equation
156,831.46 : 216,403.05 = 93,167.62 : x - Step 2: Convert to fraction form
156,831.46/216,403.05 = 93,167.62/x - Step 3: Cross multiply
156,831.46x = 216,403.05 × 93,167.62 - Step 4: Simplify right side
156,831.46x = 20,161,757,129.24 - Step 5: Solve for x
x = 20,161,757,129.24/156,831.46 - Step 6: Final answer
x = 128,556.84
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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.