Finding the Fourth Proportional to 115,555.68, 159,495.84 and 65,283.84
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Solution
The fourth proportional to 115,555.68, 159,495.84 and 65,283.84 is: 90,108.08
Step by Step Solution
- Step 1: Write the proportion equation
115,555.68 : 159,495.84 = 65,283.84 : x - Step 2: Convert to fraction form
115,555.68/159,495.84 = 65,283.84/x - Step 3: Cross multiply
115,555.68x = 159,495.84 × 65,283.84 - Step 4: Simplify right side
115,555.68x = 10,412,500,899.23 - Step 5: Solve for x
x = 10,412,500,899.23/115,555.68 - Step 6: Final answer
x = 90,108.08
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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.