Finding the Fourth Proportional to 159,004.68, 219,439.92 and 108,130.26
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Solution
The fourth proportional to 159,004.68, 219,439.92 and 108,130.26 is: 149,228.91
Step by Step Solution
- Step 1: Write the proportion equation
159,004.68 : 219,439.92 = 108,130.26 : x - Step 2: Convert to fraction form
159,004.68/219,439.92 = 108,130.26/x - Step 3: Cross multiply
159,004.68x = 219,439.92 × 108,130.26 - Step 4: Simplify right side
159,004.68x = 23,728,095,603.98 - Step 5: Solve for x
x = 23,728,095,603.98/159,004.68 - Step 6: Final answer
x = 149,228.91
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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.