Finding the Fourth Proportional to 135,358.64, 202,796.80 and 115,435.08
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Solution
The fourth proportional to 135,358.64, 202,796.80 and 115,435.08 is: 172,946.96
Step by Step Solution
- Step 1: Write the proportion equation
135,358.64 : 202,796.80 = 115,435.08 : x - Step 2: Convert to fraction form
135,358.64/202,796.80 = 115,435.08/x - Step 3: Cross multiply
135,358.64x = 202,796.80 × 115,435.08 - Step 4: Simplify right side
135,358.64x = 23,409,864,831.74 - Step 5: Solve for x
x = 23,409,864,831.74/135,358.64 - Step 6: Final answer
x = 172,946.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.