Finding the Fourth Proportional to 115,267.31, 159,069.58 and 64,283.26
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Solution
The fourth proportional to 115,267.31, 159,069.58 and 64,283.26 is: 88,711.28
Step by Step Solution
- Step 1: Write the proportion equation
115,267.31 : 159,069.58 = 64,283.26 : x - Step 2: Convert to fraction form
115,267.31/159,069.58 = 64,283.26/x - Step 3: Cross multiply
115,267.31x = 159,069.58 × 64,283.26 - Step 4: Simplify right side
115,267.31x = 10,225,511,169.23 - Step 5: Solve for x
x = 10,225,511,169.23/115,267.31 - Step 6: Final answer
x = 88,711.28
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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.