Finding the Fourth Proportional to 126,569.68, 189,928.36 and 47,690.08
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Solution
The fourth proportional to 126,569.68, 189,928.36 and 47,690.08 is: 71,562.94
Step by Step Solution
- Step 1: Write the proportion equation
126,569.68 : 189,928.36 = 47,690.08 : x - Step 2: Convert to fraction form
126,569.68/189,928.36 = 47,690.08/x - Step 3: Cross multiply
126,569.68x = 189,928.36 × 47,690.08 - Step 4: Simplify right side
126,569.68x = 9,057,698,682.67 - Step 5: Solve for x
x = 9,057,698,682.67/126,569.68 - Step 6: Final answer
x = 71,562.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.