Finding the Fourth Proportional to 145,919.44, 201,368.83 and 78,851.44
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Solution
The fourth proportional to 145,919.44, 201,368.83 and 78,851.44 is: 108,814.99
Step by Step Solution
- Step 1: Write the proportion equation
145,919.44 : 201,368.83 = 78,851.44 : x - Step 2: Convert to fraction form
145,919.44/201,368.83 = 78,851.44/x - Step 3: Cross multiply
145,919.44x = 201,368.83 × 78,851.44 - Step 4: Simplify right side
145,919.44x = 15,878,221,516.06 - Step 5: Solve for x
x = 15,878,221,516.06/145,919.44 - Step 6: Final answer
x = 108,814.99
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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.