Finding the Fourth Proportional to 195,720.93, 270,090.27 and 115,153.65
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Solution
The fourth proportional to 195,720.93, 270,090.27 and 115,153.65 is: 158,909.32
Step by Step Solution
- Step 1: Write the proportion equation
195,720.93 : 270,090.27 = 115,153.65 : x - Step 2: Convert to fraction form
195,720.93/270,090.27 = 115,153.65/x - Step 3: Cross multiply
195,720.93x = 270,090.27 × 115,153.65 - Step 4: Simplify right side
195,720.93x = 31,101,880,419.99 - Step 5: Solve for x
x = 31,101,880,419.99/195,720.93 - Step 6: Final answer
x = 158,909.32
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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.