Finding the Fourth Proportional to 185,785.79, 256,462.67 and 125,438.09
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Solution
The fourth proportional to 185,785.79, 256,462.67 and 125,438.09 is: 173,157.42
Step by Step Solution
- Step 1: Write the proportion equation
185,785.79 : 256,462.67 = 125,438.09 : x - Step 2: Convert to fraction form
185,785.79/256,462.67 = 125,438.09/x - Step 3: Cross multiply
185,785.79x = 256,462.67 × 125,438.09 - Step 4: Simplify right side
185,785.79x = 32,170,186,512.38 - Step 5: Solve for x
x = 32,170,186,512.38/185,785.79 - Step 6: Final answer
x = 173,157.42
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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.