Finding the Fourth Proportional to 128,124.95, 190,872.02 and 122,367.74
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Solution
The fourth proportional to 128,124.95, 190,872.02 and 122,367.74 is: 182,295.31
Step by Step Solution
- Step 1: Write the proportion equation
128,124.95 : 190,872.02 = 122,367.74 : x - Step 2: Convert to fraction form
128,124.95/190,872.02 = 122,367.74/x - Step 3: Cross multiply
128,124.95x = 190,872.02 × 122,367.74 - Step 4: Simplify right side
128,124.95x = 23,356,577,068.19 - Step 5: Solve for x
x = 23,356,577,068.19/128,124.95 - Step 6: Final answer
x = 182,295.31
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.