Finding the Fourth Proportional to 115,551.20, 159,445.99 and 67,787.12
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Solution
The fourth proportional to 115,551.20, 159,445.99 and 67,787.12 is: 93,537.62
Step by Step Solution
- Step 1: Write the proportion equation
115,551.20 : 159,445.99 = 67,787.12 : x - Step 2: Convert to fraction form
115,551.20/159,445.99 = 67,787.12/x - Step 3: Cross multiply
115,551.20x = 159,445.99 × 67,787.12 - Step 4: Simplify right side
115,551.20x = 10,808,384,457.65 - Step 5: Solve for x
x = 10,808,384,457.65/115,551.20 - Step 6: Final answer
x = 93,537.62
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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.