Finding the Fourth Proportional to 99,203.28, 136,901.70 and 53,881.80
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Solution
The fourth proportional to 99,203.28, 136,901.70 and 53,881.80 is: 74,357.52
Step by Step Solution
- Step 1: Write the proportion equation
99,203.28 : 136,901.70 = 53,881.80 : x - Step 2: Convert to fraction form
99,203.28/136,901.70 = 53,881.80/x - Step 3: Cross multiply
99,203.28x = 136,901.70 × 53,881.80 - Step 4: Simplify right side
99,203.28x = 7,376,510,019.06 - Step 5: Solve for x
x = 7,376,510,019.06/99,203.28 - Step 6: Final answer
x = 74,357.52
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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.