Finding the Fourth Proportional to 99,256.14, 136,974.06 and 53,934.48
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Solution
The fourth proportional to 99,256.14, 136,974.06 and 53,934.48 is: 74,429.90
Step by Step Solution
- Step 1: Write the proportion equation
99,256.14 : 136,974.06 = 53,934.48 : x - Step 2: Convert to fraction form
99,256.14/136,974.06 = 53,934.48/x - Step 3: Cross multiply
99,256.14x = 136,974.06 × 53,934.48 - Step 4: Simplify right side
99,256.14x = 7,387,624,699.59 - Step 5: Solve for x
x = 7,387,624,699.59/99,256.14 - Step 6: Final answer
x = 74,429.90
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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.