Finding the Fourth Proportional to 148,215.15, 204,654.84 and 136,880.49
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Solution
The fourth proportional to 148,215.15, 204,654.84 and 136,880.49 is: 189,003.99
Step by Step Solution
- Step 1: Write the proportion equation
148,215.15 : 204,654.84 = 136,880.49 : x - Step 2: Convert to fraction form
148,215.15/204,654.84 = 136,880.49/x - Step 3: Cross multiply
148,215.15x = 204,654.84 × 136,880.49 - Step 4: Simplify right side
148,215.15x = 28,013,254,780.07 - Step 5: Solve for x
x = 28,013,254,780.07/148,215.15 - Step 6: Final answer
x = 189,003.99
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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.