Finding the Fourth Proportional to 113,987.26, 157,297.53 and 62,997.36
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Solution
The fourth proportional to 113,987.26, 157,297.53 and 62,997.36 is: 86,933.65
Step by Step Solution
- Step 1: Write the proportion equation
113,987.26 : 157,297.53 = 62,997.36 : x - Step 2: Convert to fraction form
113,987.26/157,297.53 = 62,997.36/x - Step 3: Cross multiply
113,987.26x = 157,297.53 × 62,997.36 - Step 4: Simplify right side
113,987.26x = 9,909,328,023.05 - Step 5: Solve for x
x = 9,909,328,023.05/113,987.26 - Step 6: Final answer
x = 86,933.65
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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.