Finding the Fourth Proportional to 128,867.40, 193,349.70 and 62,366.40
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Solution
The fourth proportional to 128,867.40, 193,349.70 and 62,366.40 is: 93,573.12
Step by Step Solution
- Step 1: Write the proportion equation
128,867.40 : 193,349.70 = 62,366.40 : x - Step 2: Convert to fraction form
128,867.40/193,349.70 = 62,366.40/x - Step 3: Cross multiply
128,867.40x = 193,349.70 × 62,366.40 - Step 4: Simplify right side
128,867.40x = 12,058,524,730.08 - Step 5: Solve for x
x = 12,058,524,730.08/128,867.40 - Step 6: Final answer
x = 93,573.12
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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.