Finding the Fourth Proportional to 121,831.16, 168,076.08 and 94,926.96
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Solution
The fourth proportional to 121,831.16, 168,076.08 and 94,926.96 is: 130,959.53
Step by Step Solution
- Step 1: Write the proportion equation
121,831.16 : 168,076.08 = 94,926.96 : x - Step 2: Convert to fraction form
121,831.16/168,076.08 = 94,926.96/x - Step 3: Cross multiply
121,831.16x = 168,076.08 × 94,926.96 - Step 4: Simplify right side
121,831.16x = 15,954,951,395.36 - Step 5: Solve for x
x = 15,954,951,395.36/121,831.16 - Step 6: Final answer
x = 130,959.53
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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.