Finding the Fourth Proportional to 189,739.68, 261,838.35 and 104,854.92
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Solution
The fourth proportional to 189,739.68, 261,838.35 and 104,854.92 is: 144,698.46
Step by Step Solution
- Step 1: Write the proportion equation
189,739.68 : 261,838.35 = 104,854.92 : x - Step 2: Convert to fraction form
189,739.68/261,838.35 = 104,854.92/x - Step 3: Cross multiply
189,739.68x = 261,838.35 × 104,854.92 - Step 4: Simplify right side
189,739.68x = 27,455,039,242.18 - Step 5: Solve for x
x = 27,455,039,242.18/189,739.68 - Step 6: Final answer
x = 144,698.46
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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.