Finding the Fourth Proportional to 125,128.23, 187,612.80 and 106,159.41
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Solution
The fourth proportional to 125,128.23, 187,612.80 and 106,159.41 is: 159,171.62
Step by Step Solution
- Step 1: Write the proportion equation
125,128.23 : 187,612.80 = 106,159.41 : x - Step 2: Convert to fraction form
125,128.23/187,612.80 = 106,159.41/x - Step 3: Cross multiply
125,128.23x = 187,612.80 × 106,159.41 - Step 4: Simplify right side
125,128.23x = 19,916,863,851.00 - Step 5: Solve for x
x = 19,916,863,851.00/125,128.23 - Step 6: Final answer
x = 159,171.62
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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.