Finding the Fourth Proportional to 156,739.75, 216,295.07 and 85,118.23
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Solution
The fourth proportional to 156,739.75, 216,295.07 and 85,118.23 is: 117,460.02
Step by Step Solution
- Step 1: Write the proportion equation
156,739.75 : 216,295.07 = 85,118.23 : x - Step 2: Convert to fraction form
156,739.75/216,295.07 = 85,118.23/x - Step 3: Cross multiply
156,739.75x = 216,295.07 × 85,118.23 - Step 4: Simplify right side
156,739.75x = 18,410,653,516.13 - Step 5: Solve for x
x = 18,410,653,516.13/156,739.75 - Step 6: Final answer
x = 117,460.02
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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.