Finding the Fourth Proportional to 156,632.99, 215,990.08 and 92,958.48
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Solution
The fourth proportional to 156,632.99, 215,990.08 and 92,958.48 is: 128,185.70
Step by Step Solution
- Step 1: Write the proportion equation
156,632.99 : 215,990.08 = 92,958.48 : x - Step 2: Convert to fraction form
156,632.99/215,990.08 = 92,958.48/x - Step 3: Cross multiply
156,632.99x = 215,990.08 × 92,958.48 - Step 4: Simplify right side
156,632.99x = 20,078,109,299.48 - Step 5: Solve for x
x = 20,078,109,299.48/156,632.99 - Step 6: Final answer
x = 128,185.70
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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.