Finding the Fourth Proportional to 192,139.77, 265,153.14 and 107,256.75
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Solution
The fourth proportional to 192,139.77, 265,153.14 and 107,256.75 is: 148,014.46
Step by Step Solution
- Step 1: Write the proportion equation
192,139.77 : 265,153.14 = 107,256.75 : x - Step 2: Convert to fraction form
192,139.77/265,153.14 = 107,256.75/x - Step 3: Cross multiply
192,139.77x = 265,153.14 × 107,256.75 - Step 4: Simplify right side
192,139.77x = 28,439,464,048.70 - Step 5: Solve for x
x = 28,439,464,048.70/192,139.77 - Step 6: Final answer
x = 148,014.46
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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.