Finding the Fourth Proportional to 157,232.08, 216,977.16 and 85,612.96
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Solution
The fourth proportional to 157,232.08, 216,977.16 and 85,612.96 is: 118,144.19
Step by Step Solution
- Step 1: Write the proportion equation
157,232.08 : 216,977.16 = 85,612.96 : x - Step 2: Convert to fraction form
157,232.08/216,977.16 = 85,612.96/x - Step 3: Cross multiply
157,232.08x = 216,977.16 × 85,612.96 - Step 4: Simplify right side
157,232.08x = 18,576,056,919.99 - Step 5: Solve for x
x = 18,576,056,919.99/157,232.08 - Step 6: Final answer
x = 118,144.19
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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.