Finding the Fourth Proportional to 157,317.29, 235,788.62 and 90,619.26
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Solution
The fourth proportional to 157,317.29, 235,788.62 and 90,619.26 is: 135,820.99
Step by Step Solution
- Step 1: Write the proportion equation
157,317.29 : 235,788.62 = 90,619.26 : x - Step 2: Convert to fraction form
157,317.29/235,788.62 = 90,619.26/x - Step 3: Cross multiply
157,317.29x = 235,788.62 × 90,619.26 - Step 4: Simplify right side
157,317.29x = 21,366,989,807.72 - Step 5: Solve for x
x = 21,366,989,807.72/157,317.29 - Step 6: Final answer
x = 135,820.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.