Finding the Fourth Proportional to 152,081.13, 209,873.33 and 84,102.68
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Solution
The fourth proportional to 152,081.13, 209,873.33 and 84,102.68 is: 116,062.46
Step by Step Solution
- Step 1: Write the proportion equation
152,081.13 : 209,873.33 = 84,102.68 : x - Step 2: Convert to fraction form
152,081.13/209,873.33 = 84,102.68/x - Step 3: Cross multiply
152,081.13x = 209,873.33 × 84,102.68 - Step 4: Simplify right side
152,081.13x = 17,650,909,933.08 - Step 5: Solve for x
x = 17,650,909,933.08/152,081.13 - Step 6: Final answer
x = 116,062.46
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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.