Finding the Fourth Proportional to 110,905.68, 153,006.44 and 68,390.40
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Solution
The fourth proportional to 110,905.68, 153,006.44 and 68,390.40 is: 94,351.99
Step by Step Solution
- Step 1: Write the proportion equation
110,905.68 : 153,006.44 = 68,390.40 : x - Step 2: Convert to fraction form
110,905.68/153,006.44 = 68,390.40/x - Step 3: Cross multiply
110,905.68x = 153,006.44 × 68,390.40 - Step 4: Simplify right side
110,905.68x = 10,464,171,634.18 - Step 5: Solve for x
x = 10,464,171,634.18/110,905.68 - Step 6: Final answer
x = 94,351.99
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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.