Finding the Fourth Proportional to 124,139.68, 186,098.77 and 103,251.09
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Solution
The fourth proportional to 124,139.68, 186,098.77 and 103,251.09 is: 154,784.52
Step by Step Solution
- Step 1: Write the proportion equation
124,139.68 : 186,098.77 = 103,251.09 : x - Step 2: Convert to fraction form
124,139.68/186,098.77 = 103,251.09/x - Step 3: Cross multiply
124,139.68x = 186,098.77 × 103,251.09 - Step 4: Simplify right side
124,139.68x = 19,214,900,850.16 - Step 5: Solve for x
x = 19,214,900,850.16/124,139.68 - Step 6: Final answer
x = 154,784.52
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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.