Finding the Fourth Proportional to 115,297.56, 159,121.06 and 69,987.08
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Solution
The fourth proportional to 115,297.56, 159,121.06 and 69,987.08 is: 96,588.50
Step by Step Solution
- Step 1: Write the proportion equation
115,297.56 : 159,121.06 = 69,987.08 : x - Step 2: Convert to fraction form
115,297.56/159,121.06 = 69,987.08/x - Step 3: Cross multiply
115,297.56x = 159,121.06 × 69,987.08 - Step 4: Simplify right side
115,297.56x = 11,136,418,355.90 - Step 5: Solve for x
x = 11,136,418,355.90/115,297.56 - Step 6: Final answer
x = 96,588.50
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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.