Finding the Fourth Proportional to 191,021.52, 263,598.12 and 106,135.68
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Solution
The fourth proportional to 191,021.52, 263,598.12 and 106,135.68 is: 146,460.81
Step by Step Solution
- Step 1: Write the proportion equation
191,021.52 : 263,598.12 = 106,135.68 : x - Step 2: Convert to fraction form
191,021.52/263,598.12 = 106,135.68/x - Step 3: Cross multiply
191,021.52x = 263,598.12 × 106,135.68 - Step 4: Simplify right side
191,021.52x = 27,977,165,712.92 - Step 5: Solve for x
x = 27,977,165,712.92/191,021.52 - Step 6: Final answer
x = 146,460.81
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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.