Finding the Fourth Proportional to 105,316.20, 157,969.44 and 26,428.68
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Solution
The fourth proportional to 105,316.20, 157,969.44 and 26,428.68 is: 39,641.80
Step by Step Solution
- Step 1: Write the proportion equation
105,316.20 : 157,969.44 = 26,428.68 : x - Step 2: Convert to fraction form
105,316.20/157,969.44 = 26,428.68/x - Step 3: Cross multiply
105,316.20x = 157,969.44 × 26,428.68 - Step 4: Simplify right side
105,316.20x = 4,174,923,779.54 - Step 5: Solve for x
x = 4,174,923,779.54/105,316.20 - Step 6: Final answer
x = 39,641.80
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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.