Finding the Fourth Proportional to 115,637.26, 159,606.09 and 75,280.75
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Solution
The fourth proportional to 115,637.26, 159,606.09 and 75,280.75 is: 103,904.80
Step by Step Solution
- Step 1: Write the proportion equation
115,637.26 : 159,606.09 = 75,280.75 : x - Step 2: Convert to fraction form
115,637.26/159,606.09 = 75,280.75/x - Step 3: Cross multiply
115,637.26x = 159,606.09 × 75,280.75 - Step 4: Simplify right side
115,637.26x = 12,015,266,159.77 - Step 5: Solve for x
x = 12,015,266,159.77/115,637.26 - Step 6: Final answer
x = 103,904.80
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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.