Finding the Fourth Proportional to 145,881.26, 201,316.12 and 78,813.26
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Solution
The fourth proportional to 145,881.26, 201,316.12 and 78,813.26 is: 108,762.29
Step by Step Solution
- Step 1: Write the proportion equation
145,881.26 : 201,316.12 = 78,813.26 : x - Step 2: Convert to fraction form
145,881.26/201,316.12 = 78,813.26/x - Step 3: Cross multiply
145,881.26x = 201,316.12 × 78,813.26 - Step 4: Simplify right side
145,881.26x = 15,866,379,707.75 - Step 5: Solve for x
x = 15,866,379,707.75/145,881.26 - Step 6: Final answer
x = 108,762.29
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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.