Finding the Fourth Proportional to 116,656.08, 160,943.28 and 76,392.80
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Solution
The fourth proportional to 116,656.08, 160,943.28 and 76,392.80 is: 105,394.49
Step by Step Solution
- Step 1: Write the proportion equation
116,656.08 : 160,943.28 = 76,392.80 : x - Step 2: Convert to fraction form
116,656.08/160,943.28 = 76,392.80/x - Step 3: Cross multiply
116,656.08x = 160,943.28 × 76,392.80 - Step 4: Simplify right side
116,656.08x = 12,294,907,800.38 - Step 5: Solve for x
x = 12,294,907,800.38/116,656.08 - Step 6: Final answer
x = 105,394.49
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1.5x scale
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.