Finding the Fourth Proportional to 128,910.84, 193,368.73 and 44,673.75
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Solution
The fourth proportional to 128,910.84, 193,368.73 and 44,673.75 is: 67,011.48
Step by Step Solution
- Step 1: Write the proportion equation
128,910.84 : 193,368.73 = 44,673.75 : x - Step 2: Convert to fraction form
128,910.84/193,368.73 = 44,673.75/x - Step 3: Cross multiply
128,910.84x = 193,368.73 × 44,673.75 - Step 4: Simplify right side
128,910.84x = 8,638,505,656.93 - Step 5: Solve for x
x = 8,638,505,656.93/128,910.84 - Step 6: Final answer
x = 67,011.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.