Finding the Fourth Proportional to 148,292.20, 204,657.90 and 84,639.58
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Solution
The fourth proportional to 148,292.20, 204,657.90 and 84,639.58 is: 116,810.99
Step by Step Solution
- Step 1: Write the proportion equation
148,292.20 : 204,657.90 = 84,639.58 : x - Step 2: Convert to fraction form
148,292.20/204,657.90 = 84,639.58/x - Step 3: Cross multiply
148,292.20x = 204,657.90 × 84,639.58 - Step 4: Simplify right side
148,292.20x = 17,322,158,699.68 - Step 5: Solve for x
x = 17,322,158,699.68/148,292.20 - Step 6: Final answer
x = 116,810.99
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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.