Finding the Fourth Proportional to 113,853.09, 157,161.57 and 101,895.66
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Solution
The fourth proportional to 113,853.09, 157,161.57 and 101,895.66 is: 140,655.66
Step by Step Solution
- Step 1: Write the proportion equation
113,853.09 : 157,161.57 = 101,895.66 : x - Step 2: Convert to fraction form
113,853.09/157,161.57 = 101,895.66/x - Step 3: Cross multiply
113,853.09x = 157,161.57 × 101,895.66 - Step 4: Simplify right side
113,853.09x = 16,014,081,901.79 - Step 5: Solve for x
x = 16,014,081,901.79/113,853.09 - Step 6: Final answer
x = 140,655.66
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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.