Finding the Fourth Proportional to 156,232.95, 215,601.84 and 84,612.75
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Solution
The fourth proportional to 156,232.95, 215,601.84 and 84,612.75 is: 116,765.79
Step by Step Solution
- Step 1: Write the proportion equation
156,232.95 : 215,601.84 = 84,612.75 : x - Step 2: Convert to fraction form
156,232.95/215,601.84 = 84,612.75/x - Step 3: Cross multiply
156,232.95x = 215,601.84 × 84,612.75 - Step 4: Simplify right side
156,232.95x = 18,242,664,587.46 - Step 5: Solve for x
x = 18,242,664,587.46/156,232.95 - Step 6: Final answer
x = 116,765.79
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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.