Finding the Fourth Proportional to 128,508.84, 192,726.27 and 44,265.60
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Solution
The fourth proportional to 128,508.84, 192,726.27 and 44,265.60 is: 66,385.66
Step by Step Solution
- Step 1: Write the proportion equation
128,508.84 : 192,726.27 = 44,265.60 : x - Step 2: Convert to fraction form
128,508.84/192,726.27 = 44,265.60/x - Step 3: Cross multiply
128,508.84x = 192,726.27 × 44,265.60 - Step 4: Simplify right side
128,508.84x = 8,531,143,977.31 - Step 5: Solve for x
x = 8,531,143,977.31/128,508.84 - Step 6: Final answer
x = 66,385.66
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1.5x scale
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.