Finding the Fourth Proportional to 114,497.74, 157,654.92 and 99,363.70
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Solution
The fourth proportional to 114,497.74, 157,654.92 and 99,363.70 is: 136,816.47
Step by Step Solution
- Step 1: Write the proportion equation
114,497.74 : 157,654.92 = 99,363.70 : x - Step 2: Convert to fraction form
114,497.74/157,654.92 = 99,363.70/x - Step 3: Cross multiply
114,497.74x = 157,654.92 × 99,363.70 - Step 4: Simplify right side
114,497.74x = 15,665,176,174.40 - Step 5: Solve for x
x = 15,665,176,174.40/114,497.74 - Step 6: Final answer
x = 136,816.47
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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.