Finding the Fourth Proportional to 124,387.99, 186,678.86 and 86,702.73
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Solution
The fourth proportional to 124,387.99, 186,678.86 and 86,702.73 is: 130,121.63
Step by Step Solution
- Step 1: Write the proportion equation
124,387.99 : 186,678.86 = 86,702.73 : x - Step 2: Convert to fraction form
124,387.99/186,678.86 = 86,702.73/x - Step 3: Cross multiply
124,387.99x = 186,678.86 × 86,702.73 - Step 4: Simplify right side
124,387.99x = 16,185,567,712.09 - Step 5: Solve for x
x = 16,185,567,712.09/124,387.99 - Step 6: Final answer
x = 130,121.63
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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.