Finding the Fourth Proportional to 115,409.67, 159,337.35 and 74,595.17
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Solution
The fourth proportional to 115,409.67, 159,337.35 and 74,595.17 is: 102,987.88
Step by Step Solution
- Step 1: Write the proportion equation
115,409.67 : 159,337.35 = 74,595.17 : x - Step 2: Convert to fraction form
115,409.67/159,337.35 = 74,595.17/x - Step 3: Cross multiply
115,409.67x = 159,337.35 × 74,595.17 - Step 4: Simplify right side
115,409.67x = 11,885,796,710.60 - Step 5: Solve for x
x = 11,885,796,710.60/115,409.67 - Step 6: Final answer
x = 102,987.88
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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.