Finding the Fourth Proportional to 145,744.09, 201,177.18 and 85,334.14
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Solution
The fourth proportional to 145,744.09, 201,177.18 and 85,334.14 is: 117,790.59
Step by Step Solution
- Step 1: Write the proportion equation
145,744.09 : 201,177.18 = 85,334.14 : x - Step 2: Convert to fraction form
145,744.09/201,177.18 = 85,334.14/x - Step 3: Cross multiply
145,744.09x = 201,177.18 × 85,334.14 - Step 4: Simplify right side
145,744.09x = 17,167,281,642.93 - Step 5: Solve for x
x = 17,167,281,642.93/145,744.09 - Step 6: Final answer
x = 117,790.59
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1.5x scale
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.