Finding the Fourth Proportional to 110,915.84, 153,070.08 and 73,163.36
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Solution
The fourth proportional to 110,915.84, 153,070.08 and 73,163.36 is: 100,969.54
Step by Step Solution
- Step 1: Write the proportion equation
110,915.84 : 153,070.08 = 73,163.36 : x - Step 2: Convert to fraction form
110,915.84/153,070.08 = 73,163.36/x - Step 3: Cross multiply
110,915.84x = 153,070.08 × 73,163.36 - Step 4: Simplify right side
110,915.84x = 11,199,121,368.27 - Step 5: Solve for x
x = 11,199,121,368.27/110,915.84 - Step 6: Final answer
x = 100,969.54
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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.