Finding the Fourth Proportional to 140,023.08, 193,231.44 and 76,364.28
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Solution
The fourth proportional to 140,023.08, 193,231.44 and 76,364.28 is: 105,382.48
Step by Step Solution
- Step 1: Write the proportion equation
140,023.08 : 193,231.44 = 76,364.28 : x - Step 2: Convert to fraction form
140,023.08/193,231.44 = 76,364.28/x - Step 3: Cross multiply
140,023.08x = 193,231.44 × 76,364.28 - Step 4: Simplify right side
140,023.08x = 14,755,979,788.96 - Step 5: Solve for x
x = 14,755,979,788.96/140,023.08 - Step 6: Final answer
x = 105,382.48
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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.