Finding the Fourth Proportional to 139,226.68, 192,130.84 and 75,562.84
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Solution
The fourth proportional to 139,226.68, 192,130.84 and 75,562.84 is: 104,275.65
Step by Step Solution
- Step 1: Write the proportion equation
139,226.68 : 192,130.84 = 75,562.84 : x - Step 2: Convert to fraction form
139,226.68/192,130.84 = 75,562.84/x - Step 3: Cross multiply
139,226.68x = 192,130.84 × 75,562.84 - Step 4: Simplify right side
139,226.68x = 14,517,951,921.99 - Step 5: Solve for x
x = 14,517,951,921.99/139,226.68 - Step 6: Final answer
x = 104,275.65
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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.