Finding the Fourth Proportional to 124,486.20, 186,437.70 and 84,828.60
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Solution
The fourth proportional to 124,486.20, 186,437.70 and 84,828.60 is: 127,044.20
Step by Step Solution
- Step 1: Write the proportion equation
124,486.20 : 186,437.70 = 84,828.60 : x - Step 2: Convert to fraction form
124,486.20/186,437.70 = 84,828.60/x - Step 3: Cross multiply
124,486.20x = 186,437.70 × 84,828.60 - Step 4: Simplify right side
124,486.20x = 15,815,249,078.22 - Step 5: Solve for x
x = 15,815,249,078.22/124,486.20 - Step 6: Final answer
x = 127,044.20
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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.